hasselblad Wed, 4 Oct 2000 Volume 1 : Number 1008 In this issue: Re: Smile Photo; was US prices on Hasselblad Re: Smile Photo; was US prices on Hasselblad Re: US prices on Hasselblad Re: was US prices on Hasselblad HERO Program Re: polarizer for Hassy Re: polarizer for Hassy Re: polarizer for Hassy any comments on Stroboframe QR-66? fast leaves Re: any comments on Stroboframe QR-66? Re: fast leaves Re: fast leaves Re: any comments on Stroboframe QR-66? Re: fast leaves RE: fast leaves Re: fast leaves Re: fast leaves Re: fast leaves Re: fast leaves Re: fast leaves RE: fast leaves RE: fast leaves Re: any comments on Stroboframe QR-66? Re: fast leaves Re: fast leaves Re: fast leaves Re: polarizer for Hassy Re: polarizer for Hassy Re: any comments on Stroboframe QR-66? RE: fast leaves Contax 645 vs Hasselblad Re: fast leaves Re: Contax 645 vs Hasselblad Re: fast leaves Re: fast leaves Re: was US prices on Hasselblad Re: Contax 645 vs Hasselblad Re: Smile Photo ---------------------------------------------------------------------- Date: Tue, 03 Oct 2000 07:53:51 -0400 From: Marcober To: hasselblad@kelvin.net Subject: Re: Smile Photo; was US prices on Hasselblad Message-ID: <39D9C8CF.8A97B8F3@gate.net> You missed the point completely. I don't care who you buy your equipment from or if you buy equipment at all. I was just offering a suggestion, but your attitude indicates that your ability to read critically is somewhat wanting. I suggest that you watch the debates, tonight. MB JCurcio@aol.com wrote: > In a message dated 10/2/00 7:16:27 PM Eastern Daylight Time, > marcober@gate.net writes: > > << If you make a list of each member's opinion you get almost as many > divergent opinions as there are members of this group. So, therefore making a > plan becomes impossible. One's conclusion is based upon one's prior > experiences and > therefore one can make a plan w/o the benefit of anything said herein (about > where to buy equipment, that is) not about technique. But it does make > interesting bathroom reading, though. >> > > Now that's an interesting opinion you've got there: i.e. let's just ignore > everyone else's prior experience and buy at Smile because you said so. Also, > perhaps we've been reading different groups. I don't see "many divergent > opinions" regarding Smile at all. In fact, other than yours, I see unanimity > of opinion that Smile is a place to consider avoiding. That certainly is > suggested by the horror stories of some buyers listing their experiences on > the Community section at www.photo.net. The exact web page is > www.photo.net/neighbor/opc.tcl?category_id=0 > > The bottom line for me is that you have the right to spend your own money > wherever and however you please. You also have the right to extol your own > "opinion"of Smile Photo's virtues. I suppose you even have the right to try > to get us to help you score brownie points with Smile. In a prior post, you > said in part: "Also, try Smile also in N.Y. Call on the phone and > insist on dealing with MENDEL "Mike". Tell him the lawyer from Miami > referred you." > > Other people, however, have the right to state their own opinions and > experiences. If you want your own opinions respected, you might consider > respecting other peoples' opinions based upon their own experiences with the > same outfit. Certainly, you have every right to ask us to call Smile and > tell "Mike" that you sent us. Group members, however, have the right to > wonder just exactly where you're coming from and why. > > Just some more "interesting bathroom reading" for you. > ---------------------------------------------------------------------- > > The Hasselblad Users Group Listserv is a public service of Absolute Internet, Inc., which is not responsible for its content. This mailing list is in no way affiliated with Victor Hasselblad AB, it's subsidiaries, or affiliates. > > To change your subscription status, go to: http://mail.kelvin.net/guest/RemoteListSummary/Hasselblad > Digest archives are stored at http://www.kelvin.net/hasselblad/hassy.htm > Searchable archives can be found at http://www.listquest.com/arts/index.html ------------------------------ Date: Tue, 3 Oct 2000 05:28:10 -0700 (PDT) From: R Barr To: "Q.G. de Bakker" , hasselblad@kelvin.net Subject: Re: Smile Photo; was US prices on Hasselblad Message-ID: <4003221.970576090745.JavaMail.imail@sammy> Full time students, with documentation, can get NEW backs for $533 (A24), $466 (A12). A 40mm CFE distagon goes for $2574. The list goes on and on. Almost everything is on there. They do have some guidelines, but they aren't too bad. You can't resell the products for 24 months, and they must be ordered from and authorized Hasselblad USA dealer. The Carribean price for a new 40 is around $3200, no tax. _______________________________________________________ Say Bye to Slow Internet! http://www.home.com/xinbox/signup.html ------------------------------ Date: Tue, 03 Oct 2000 11:57:43 -0400 From: Henry Posner/B&H Photo-Video To: Subject: Re: US prices on Hasselblad Message-ID: <4.3.2.7.2.20001003115730.00be2ca0@bnhpop1.bhphotovideo.com> At 03:07 AM 10/03/2000, you wrote: >I've got to second the B&H "nomination". I don't see ANY reason to order >new items from anybody else. Their service is impecable, their prices more >than competitive. Now with their comprensive web site, you don't even have >to put up with the rude, pushy NY salespeople! Thank you for your kind words. -- regards, Henry Posner Director of Sales and Training B&H Photo-Video, and Pro-Audio Inc. http://www.bhphotovideo.com ------------------------------ Date: Tue, 03 Oct 2000 12:00:46 -0400 From: Henry Posner/B&H Photo-Video To: Subject: Re: was US prices on Hasselblad Message-ID: <4.3.2.7.2.20001003120002.00bede10@bnhpop1.bhphotovideo.com> At 03:07 AM 10/03/2000, you wrote: >If you make a list of each member's opinion you get almost as many >divergent opinions as there are members of this group. There's an old saying that if you put three rabbis in a room you'll get four opinions. It seems to be true of Hassy owners too. :-) -- regards, Henry Posner Director of Sales and Training B&H Photo-Video, and Pro-Audio Inc. http://www.bhphotovideo.com ------------------------------ Date: Tue, 03 Oct 2000 12:04:16 -0400 From: Henry Posner/B&H Photo-Video To: Subject: HERO Program Message-ID: <4.3.2.7.2.20001003120203.00beb8a0@bnhpop1.bhphotovideo.com> Details of the HERO program for students enrolled full-time in an accredited photography program in the United States is available at http://www.hasselbladusa.com/promos/Hero.html HERO = Hasselblad Educational Rewards Offer. -- regards, Henry Posner Director of Sales and Training B&H Photo-Video, and Pro-Audio Inc. http://www.bhphotovideo.com ------------------------------ Date: Tue, 03 Oct 2000 12:05:46 -0400 From: Henry Posner/B&H Photo-Video To: Subject: Re: polarizer for Hassy Message-ID: <4.3.2.7.2.20001003120451.00bebd70@bnhpop1.bhphotovideo.com> At 03:07 AM 10/03/2000, you wrote: >I'm interested in purchasing a polarizer. What factors should I >consider in deciding if I should get a circular or a linear? Circ pol filters are not necessary with current 'blad systems. They are necessary with modern AF systems. You can safely buy a linear or linear multi-coated pol filter. -- regards, Henry Posner Director of Sales and Training B&H Photo-Video, and Pro-Audio Inc. http://www.bhphotovideo.com ------------------------------ Date: Tue, 03 Oct 2000 12:16:01 -0400 From: carol maurin To: hasselblad@kelvin.net Subject: Re: polarizer for Hassy Message-ID: <39DA0641.27F13870@earthlink.net> Henry, Thanks for writing. I called B&H this morning and the linear Kaesman is a special order. Do you not get a lot of requests for polarizers for the Hassy? thanks carol Henry Posner/B&H Photo-Video wrote: > At 03:07 AM 10/03/2000, you wrote: > >I'm interested in purchasing a polarizer. What factors should I > >consider in deciding if I should get a circular or a linear? > > Circ pol filters are not necessary with current 'blad systems. They are > necessary with modern AF systems. You can safely buy a linear or linear > multi-coated pol filter. > > -- > regards, > Henry Posner > Director of Sales and Training > B&H Photo-Video, and Pro-Audio Inc. > http://www.bhphotovideo.com > > ---------------------------------------------------------------------- > > The Hasselblad Users Group Listserv is a public service of Absolute Internet, Inc., which is not responsible for its content. This mailing list is in no way affiliated with Victor Hasselblad AB, it's subsidiaries, or affiliates. > > To change your subscription status, go to: http://mail.kelvin.net/guest/RemoteListSummary/Hasselblad > Digest archives are stored at http://www.kelvin.net/hasselblad/hassy.htm > Searchable archives can be found at http://www.listquest.com/arts/index.html ------------------------------ Date: Tue, 03 Oct 2000 09:46:04 -0700 From: Jim Brick To: hasselblad@kelvin.net, Subject: Re: polarizer for Hassy Message-ID: <4.1.20001003094259.02471600@xsj02.sjs.agilent.com> It is not always auto focus that dictates a circular polarizer. Some cameras, such as the Leica R cameras, require a circular polarizer because their meter is behind a partial silvered mirror which, in conjunction with a linear polarizer on the lens, will result in an incorrect reading. Jim At 12:05 PM 10/3/00 -0400, Henry Posner/B&H Photo-Video wrote: >At 03:07 AM 10/03/2000, you wrote: >>I'm interested in purchasing a polarizer. What factors should I >>consider in deciding if I should get a circular or a linear? > >Circ pol filters are not necessary with current 'blad systems. They are >necessary with modern AF systems. You can safely buy a linear or linear >multi-coated pol filter. > >-- >regards, >Henry Posner >Director of Sales and Training >B&H Photo-Video, and Pro-Audio Inc. >http://www.bhphotovideo.com > >---------------------------------------------------------------------- > >The Hasselblad Users Group Listserv is a public service of Absolute >Internet, Inc., which is not responsible for its content. This mailing list >is in no way affiliated with Victor Hasselblad AB, it's subsidiaries, or >affiliates. > >To change your subscription status, go to: >http://mail.kelvin.net/guest/RemoteListSummary/Hasselblad >Digest archives are stored at http://www.kelvin.net/hasselblad/hassy.htm >Searchable archives can be found at http://www.listquest.com/arts/index.html ------------------------------ Date: Tue, 3 Oct 2000 10:02:22 -0700 (PDT) From: _emaq_ To: hasselblad@kelvin.net Subject: any comments on Stroboframe QR-66? Message-ID: Anyone use the Stoboframe QR-66 on a 500CM? I can't really justify the cost of the Hassy flash grip on my 500cm. -- _emaq_ No electrons were hurt in the making of this email. DSS/DH Public Key 0x9399D2E4 ------------------------------ Date: Tue, 3 Oct 2000 12:16:05 -0500 From: "Mark Wrigley (EDB)" To: hasselblad@kelvin.net Subject: fast leaves Message-ID: When a leaf shutter operates I assume it starts opening from the centre, opens fully, then closes again. Thus the areas in the centre of the field will always be exposed longer than the areas at the outer edge. Are the shutters so fast that this doesn't have a significant impact on the overall exposure? Does anyone know how many milliseconds (or microseconds even) it takes for the shutter to open fully? Is it the same amount of time to close up after the exposure? My guess is that it needs to be way smaller than a millisecond, but what is a realistic value?? For a piece of metal to move say 25mm in a millisecond, this is an average speed of about 60m.p.h. To travel this distance in say a hundredth of a millisecond, then we're talking really high speeds here. Oh yeah, another question - regarding the shutter speed stops - as you all know, the scale should increment by a factor of two at every stop. But for convenience the numbers are rounded off. So which series is correct and which series are rounded off to look nice? The series that goes 1, 1/2, 1/4, 1/8, the series that goes 1/15, 1/30, 1/60, or the series that goes 1/125, 1/250, 1/500?? These are just nagging little questions that I've been carrying around and wanting to unload. Just like why are there 2 high tides each day but the moon only passes overhead once. Mark RJ ------------------------------ Date: Tue, 3 Oct 2000 13:29:11 EDT From: InfinityDT@aol.com To: hasselblad@kelvin.net Subject: Re: any comments on Stroboframe QR-66? Message-ID: In a message dated 10/3/00 1:05:09 PM Eastern Daylight Time, em@nospin.org writes: << Anyone use the Stoboframe QR-66 on a 500CM? I can't really justify the cost of the Hassy flash grip on my 500cm. >> I've got a QR66, they used to make a tall model too but mine's the short one. I equipped mine with the cable release. It's a nice bracket, lets you set the camera down on a table, something the Hassy grips don't. The bottom plate also snaps into the Stroboframe QR which you can mount on a tripod. The handgrip is a soft neoprene but it's rectangular and doesn't really feel very comfortable. I also have a Hassy grip, the original one with the cable release that I picked up for $25 minus the cable. I use a 503CW so I had to modify the base, remove the shutter-button tab and install a longer cable release that goes straight to the body (just like the latest Snap Lock grip). But your C/M would take it as-is. You'd still need a flash-arm attachment, though, to get the flash up over the lens. I like the grip for handheld shooting with the prism, even without flash. ------------------------------ Date: Tue, 3 Oct 2000 13:36:58 EDT From: InfinityDT@aol.com To: hasselblad@kelvin.net Subject: Re: fast leaves Message-ID: In a message dated 10/3/00 1:21:12 PM Eastern Daylight Time, mark.wrigley@edb.ericsson.se writes: << When a leaf shutter operates I assume it starts opening from the centre, opens fully, then closes again. Thus the areas in the centre of the field will always be exposed longer than the areas at the outer edge.>> That's why 1/500 is the practical limit of a leaf shutter. The faster the speed the more siginifcant the discrepancy becomes. <> Wouldn't that be 1/2 the time of the shutter speed? <> On a mechanical shutter, none of them are exactly correct; on an electronically-controlled shutter they all are (virtually). ------------------------------ Date: Tue, 3 Oct 2000 13:41:20 EDT From: InfinityDT@aol.com To: hasselblad@kelvin.net Subject: Re: fast leaves Message-ID: <92.aadf20f.270b7440@aol.com> In a message dated 10/3/00 1:37:40 PM Eastern Daylight Time, InfinityDT@aol.com writes: << Wouldn't that be 1/2 the time of the shutter speed? >> I meant, of the fastest shutter speed, or slightly faster. ------------------------------ Date: Tue, 3 Oct 2000 10:41:44 -0700 (PDT) From: _emaq_ To: hasselblad@kelvin.net Subject: Re: any comments on Stroboframe QR-66? Message-ID: Today, The Esteemed InfinityDT@aol.com gathered electrons and wrote: > though, to get the flash up over the lens. I like the grip for handheld > shooting with the prism, even without flash. This is pretty much what I want to do also with the qr66...use it like the hassy grip for regular shooting without the flash. I'll start looking for a hassy grip. Bought one years go in a flea market but it didn't fit my 500cm...wit was for the older C's. -- _emaq_ No electrons were hurt in the making of this email. DSS/DH Public Key 0x9399D2E4 ------------------------------ Date: Tue, 3 Oct 2000 13:52:48 -0000 From: "Peter Jon White" To: Subject: Re: fast leaves Message-ID: <017201c02d41$37a72940$d8126f40@office1> If this were an issue, lenses couldn't have diaphragms. Peter Jon White Peter White Cycles 666 Mass Ave Acton, MA 01720 978 635 0969 voice 978 929 9654 fax http://www.PeterWhiteCycles.com > When a leaf shutter operates I assume it starts opening from the centre, > opens fully, then closes again. > Thus the areas in the centre of the field will always be exposed longer than > the areas at the outer edge. > > Are the shutters so fast that this doesn't have a significant impact on the > overall exposure? ------------------------------ Date: Tue, 3 Oct 2000 13:06:54 -0500 From: "Mark Wrigley (EDB)" To: "'hasselblad@kelvin.net'" Subject: RE: fast leaves Message-ID: What? There are lots of compromises in a Hasselblad. Each one is an issue. This doesn't stop them building Hasselblads. Careful design and manufacture disguise the issues to a point where most people are unaware of them. In this case, the issue is disguised by limiting the top speed of the shutter. I just wanna know how good is the disguise. Mark RJ -----Original Message----- From: Peter Jon White [mailto:PeterJonWhite@PeterWhiteCycles.com] Sent: Tuesday, 3 October 2000 10:53 AM To: hasselblad@kelvin.net Subject: Re: fast leaves If this were an issue, lenses couldn't have diaphragms. Peter Jon White Peter White Cycles 666 Mass Ave Acton, MA 01720 978 635 0969 voice 978 929 9654 fax http://www.PeterWhiteCycles.com > When a leaf shutter operates I assume it starts opening from the centre, > opens fully, then closes again. > Thus the areas in the centre of the field will always be exposed longer than > the areas at the outer edge. > > Are the shutters so fast that this doesn't have a significant impact on the > overall exposure? ---------------------------------------------------------------------- The Hasselblad Users Group Listserv is a public service of Absolute Internet, Inc., which is not responsible for its content. This mailing list is in no way affiliated with Victor Hasselblad AB, it's subsidiaries, or affiliates. To change your subscription status, go to: http://mail.kelvin.net/guest/RemoteListSummary/Hasselblad Digest archives are stored at http://www.kelvin.net/hasselblad/hassy.htm Searchable archives can be found at http://www.listquest.com/arts/index.html ------------------------------ Date: Tue, 3 Oct 2000 11:15:40 -0700 (PDT) From: R Barr To: hasselblad@kelvin.net Subject: Re: fast leaves Message-ID: <7376437.970596940503.JavaMail.imail@sammy> Doesn't a leaf shutter expose the whole image area on the negative the instant the shutter begins to open? Its like starting out at an extremely small aperature, maxing out at the chosen aperture and then re-closing. A lens set at say f/45 doesn't only expose a small area in the center of a negative. A focal plane shutter is a different story, however. _______________________________________________________ Say Bye to Slow Internet! http://www.home.com/xinbox/signup.html ------------------------------ Date: Tue, 03 Oct 2000 11:16:39 -0700 From: "Peter Klosky" To: , Subject: Re: fast leaves Message-ID: Peter, I don't follow your logic about the diaphragms. Can you elaborate? = Lenses could still have f-stop diaphragms that closed slowly before the = shutters fired, then slowly opened again after the exposure. My understanding is that the speed of the mechanisms is an issue for leaf = shutters. The comments that a leaf shutter at 1/500th tends to darken the = edges of the result are reasonably well known. For the fast speeds like = 1/1000, etc., designers tend to use focal plane shutters due to the = problem the original poster describes. The size of the shutter is also an = issue. There is a current wide angle camera, the Fuji GA645Zw, if memory = serves, that has a 1/700th leaf shutter. This is probably due to some = combination of design improvement and/or the fact that the lens is small. Even though leaf shutters are imperfect in this respect, I still think = they are great for fill flash outdoors. I try to avoid 1/500th when = convenient. A test for this would be to expose some narrow latitude = material, such as chrome film, on an evenly lit subject, such as the sky = or a brick wall, then use a neutral density filter and/or different fstops = to see if you can measure the effect. Peter >>> PeterJonWhite@PeterWhiteCycles.com 10/03/00 09:52AM >>> If this were an issue, lenses couldn't have diaphragms. Peter Jon White Peter White Cycles 666 Mass Ave Acton, MA 01720 978 635 0969 voice 978 929 9654 fax http://www.PeterWhiteCycles.com=20 > When a leaf shutter operates I assume it starts opening from the centre, > opens fully, then closes again. > Thus the areas in the centre of the field will always be exposed longer than > the areas at the outer edge. > > Are the shutters so fast that this doesn't have a significant impact on the > overall exposure? ---------------------------------------------------------------------- The Hasselblad Users Group Listserv is a public service of Absolute = Internet, Inc., which is not responsible for its content. This mailing = list is in no way affiliated with Victor Hasselblad AB, it's subsidiaries, = or affiliates. To change your subscription status, go to: http://mail.kelvin.net/guest/Rem= oteListSummary/Hasselblad=20 Digest archives are stored at http://www.kelvin.net/hasselblad/hassy.htm=20= Searchable archives can be found at http://www.listquest.com/arts/index.htm= l ------------------------------ Date: Tue, 03 Oct 2000 11:24:24 -0700 From: "Peter Klosky" To: , Subject: Re: fast leaves Message-ID: I thought the effect was not precisely darkening of the edges, but perhaps = more clearly stated as triangular marks on the work representing the = blades. Correct me if I am wrong, but I thought there was space between = the adjacent blades as they open. >>> rbarr@EXCITE.COM 10/03/00 02:15PM >>> Doesn't a leaf shutter expose the whole image area on the negative the instant the shutter begins to open? Its like starting out at an extremely small aperature, maxing out at the chosen aperture and then re-closing. A lens set at say f/45 doesn't only expose a small area in the center of a negative. A focal plane shutter is a different story, however. ------------------------------ Date: Tue, 3 Oct 2000 21:04:08 +0200 From: "Q.G. de Bakker" To: Subject: Re: fast leaves Message-ID: <003801c02d6d$f4833aa0$dee7f1c3@qnu99> Mark Wrigley (EDB) wrote: > When a leaf shutter operates I assume it starts opening from the centre, > opens fully, then closes again. > Thus the areas in the centre of the field will always be exposed longer than > the areas at the outer edge. > > Are the shutters so fast that this doesn't have a significant impact on the > overall exposure? It does have an impact. Since the time the shutter remains open decreases when going to shorter shutter speeds, but the time it takes the shutter to open and close, this will be most noticeable with the fastest speeds. And since what matters is the uncovering of the aperture, the effect will be even more noticeable when using smaal apertures. So using a 1/500 shutterspeed at f/22 will indeed result in overexposure. > Does anyone know how many milliseconds (or microseconds even) it takes for > the shutter to open fully? I'd have to look this up. I know Hasselblad published shutter timings once, but when and where... Perhaps someone can tell us? > Is it the same amount of time to close up after the exposure? Yes, the same amount of time would be needed to close again. > My guess is that it needs to be way smaller than a millisecond, but what is > a realistic value?? For a piece of metal to move say 25mm in a millisecond, > this is an average speed of about 60m.p.h. To travel this distance in say a > hundredth of a millisecond, then we're talking really high speeds here. > Oh yeah, another question - regarding the shutter speed stops - as you all > know, the scale should increment by a factor of two at every stop. But for > convenience the numbers are rounded off. So which series is correct and > which series are rounded off to look nice? > > The series that goes 1, 1/2, 1/4, 1/8, > the series that goes 1/15, 1/30, 1/60, > or > the series that goes 1/125, 1/250, 1/500?? The correct series would be 1, 2, 4, 8, 16, 32, 64, 128, 256, 1024, 2048. A very familiar sequence to anyone using a computer. The differences between the 'real' times and the printed, rounded times are very small indeed. For instance the difference between 1/30 and 1/32 is 0.09 stop, the difference between 1/500 and 1/512 is about 0.03 stop, even less. > These are just nagging little questions that I've been carrying around and > wanting to unload. Just like why are there 2 high tides each day but the > moon only passes overhead once. It passes once per day overhead, once per day 'underfoot' ;-) ------------------------------ Date: Tue, 3 Oct 2000 21:08:55 +0200 From: "Q.G. de Bakker" To: Subject: Re: fast leaves Message-ID: <003901c02d6d$f8a32320$dee7f1c3@qnu99> InfinityDT@aol.com wrote: > << When a leaf shutter operates I assume it starts opening from the centre, > opens fully, then closes again. > Thus the areas in the centre of the field will always be exposed longer than > the areas at the outer edge.>> > > That's why 1/500 is the practical limit of a leaf shutter. The faster the > speed the more siginifcant the discrepancy becomes. Unless you can make better (faster) leaf shutters, like Rollei uses in their PQS lenses. ------------------------------ Date: Tue, 3 Oct 2000 14:28:20 -0500 From: "Mark Wrigley (EDB)" To: "'hasselblad@kelvin.net'" Subject: RE: fast leaves Message-ID: >> These are just nagging little questions that I've been carrying around and >> wanting to unload. Just like why are there 2 high tides each day but the >> moon only passes overhead once. > >It passes once per day overhead, once per day 'underfoot' ;-) > Yeah, but when it passes underfoot, its gravitational pull means that there should be a low tide where I am and a high tide in the antipodes. And to get back on topic, for those who wanna shoot full moons, there's a gadget that looks like a slide rule which will work out the dates of full moons (or any moon phase for that matter) for the next eight thousand years. If only it could predict whether it will be overcast or not. http://www.moonstick.com/ I got one a few weeks ago, simply amazing. Mark RJ ------------------------------ Date: Tue, 3 Oct 2000 15:37:40 -0400 From: "Paolo Pignatelli" To: "'Q.G. de Bakker'" , Subject: RE: fast leaves Message-ID: <000801c02d71$6578e4f0$0100a8c0@paolopent> Lucky Baron Munchausen knew that! Paolo Paolo Pignatelli It passes once per day overhead, once per day 'underfoot' ;-) ------------------------------ Date: Tue, 03 Oct 2000 15:11:38 -0500 From: Arlyn DeBruyckere To: hasselblad@kelvin.net Subject: Re: any comments on Stroboframe QR-66? Message-ID: <39DA3D79.EF92F0D1@hutch.k12.mn.us> I use two of them, one shorter than the other (the short for the Metz type flash, the taller for Vivitar 285). They work well, I leave them attached all the time and use the QRC on the tripod. They go on and off in a flash :), prevent red-eye, and serve as my handle. _emaq_ wrote: > > Anyone use the Stoboframe QR-66 on a 500CM? I can't really justify the > cost of the Hassy flash grip on my 500cm. > -- Arlyn DeBruyckere ------------------------------ Date: Tue, 03 Oct 2000 22:26:44 +0200 From: Lars =?iso-8859-1?Q?H=E4gglund?= To: hasselblad@kelvin.net Subject: Re: fast leaves Message-ID: <39DA4103.32F67319@ljusdal.se> A leaf shutter does not contribute to uneven exposure of the neg at all. If so , there would also be a difference between pictures exposed at say f 2.8 and f22. In Ansel Adams book The Camera there is a very good explanation of the effects of leaf shutters vs focal plane shutters Lars "Mark Wrigley (EDB)" wrote: > When a leaf shutter operates I assume it starts opening from the centre, > opens fully, then closes again. > Thus the areas in the centre of the field will always be exposed longer than > the areas at the outer edge. > > Are the shutters so fast that this doesn't have a significant impact on the > overall exposure? > Does anyone know how many milliseconds (or microseconds even) it takes for > the shutter to open fully? > Is it the same amount of time to close up after the exposure? > My guess is that it needs to be way smaller than a millisecond, but what is > a realistic value?? For a piece of metal to move say 25mm in a millisecond, > this is an average speed of about 60m.p.h. To travel this distance in say a > hundredth of a millisecond, then we're talking really high speeds here. > > Oh yeah, another question - regarding the shutter speed stops - as you all > know, the scale should increment by a factor of two at every stop. But for > convenience the numbers are rounded off. So which series is correct and > which series are rounded off to look nice? > > The series that goes 1, 1/2, 1/4, 1/8, > the series that goes 1/15, 1/30, 1/60, > or > the series that goes 1/125, 1/250, 1/500?? > > These are just nagging little questions that I've been carrying around and > wanting to unload. Just like why are there 2 high tides each day but the > moon only passes overhead once. > > Mark > RJ > > ---------------------------------------------------------------------- > > The Hasselblad Users Group Listserv is a public service of Absolute Internet, Inc., which is not responsible for its content. This mailing list is in no way affiliated with Victor Hasselblad AB, it's subsidiaries, or affiliates. > > To change your subscription status, go to: http://mail.kelvin.net/guest/RemoteListSummary/Hasselblad > Digest archives are stored at http://www.kelvin.net/hasselblad/hassy.htm > Searchable archives can be found at http://www.listquest.com/arts/index.html ------------------------------ Date: Tue, 03 Oct 2000 13:16:36 -0700 From: Aaron Wallace To: hasselblad@kelvin.net Subject: Re: fast leaves Message-ID: <20035136501783@ifact.com> At 12:16 PM 10/3/00 -0500, Mark wrote: >When a leaf shutter operates I assume it starts opening from the centre, >opens fully, then closes again. >Thus the areas in the centre of the field will always be exposed longer than >the areas at the outer edge. > >Are the shutters so fast that this doesn't have a significant impact on the >overall exposure? As explained in the Wildi book, the leaf shutter is located at a point in the optical path where there is no "vignetting" effect even though the center of the shutter is open longer than the edges. Even if the shutter opened very slowly, on the film plane what you'd notice is the entire area gradually and uniformly becoming brighter, as opposed to the center brightening first. -------------------- Aaron Wallace aaron@skeeky.com -------------------- ------------------------------ Date: Tue, 3 Oct 2000 22:19:18 +0200 From: "Q.G. de Bakker" To: Subject: Re: fast leaves Message-ID: <00b001c02d77$36f296c0$dee7f1c3@qnu99> Mark Wrigley (EDB) wrote: > And to get back on topic, for those who wanna shoot full moons, there's a > gadget that looks like a slide rule which will work out the dates of full > moons (or any moon phase for that matter) for the next eight thousand years. > If only it could predict whether it will be overcast or not. > > http://www.moonstick.com/ > > I got one a few weeks ago, simply amazing. After going through all this turmoil at the last passing of the year (Y2K problem and all), i decided never to put myself through all that anxiety again, and stay away from any technology that has a potential expiry date problem attached. So this moonstick that will only work for the next eight thousand years will not do for me: it's just not good enough! ------------------------------ Date: Tue, 03 Oct 2000 17:14:06 -0400 From: Carl Socolow To: hasselblad@kelvin.net Subject: Re: polarizer for Hassy Message-ID: <39DA4C1E.AA695E45@mindspring.com> I bought Hasselblad's Polarizer with bayonet mounting because it's neutral and made from good glass. I've also bought B&W's 77mm which I sometimes use on my Hasselblad lenses with adapter rings. It's a circular polarizer and I use it primarily on my Canon pro zooms. It's also very nice, neutral glass. As for factors in deciding, I look for no color contamination and glass that will not impinge upon the quality of my Zeiss glass. As others have mentioned, circular or linear really only matters if you're using it with beam-splitter metering systems. Carl Socolow carol maurin wrote: > > I'm interested in purchasing a polarizer. What factors should I > consider in deciding if I should get a circular or a linear? Thanks > carol > ------------------------------ Date: Tue, 3 Oct 2000 17:22:59 EDT From: InfinityDT@aol.com To: hasselblad@kelvin.net Subject: Re: polarizer for Hassy Message-ID: In a message dated 10/3/00 5:14:33 PM Eastern Daylight Time, csocolow@mindspring.com writes: << As others have mentioned, circular or linear really only matters if you're using it with beam-splitter metering systems. >> This is a good point. Someone buying a threaded polarizer to use with a bayonet adaptor on the Hasselblad would best get a circular polarizer so that it could also be used on their 35mm SLR now or future. ------------------------------ Date: Tue, 03 Oct 2000 17:53:53 -0400 From: Carl Socolow To: hasselblad@kelvin.net Subject: Re: any comments on Stroboframe QR-66? Message-ID: <39DA5571.A9B1150@mindspring.com> I use a Newton Flash bracket (non-rotating). I mount a Quantum Q-Flash on it when using it for wedding-type work with a 503CW. I take the flash bracket off and just use the handle as something to hold onto when doing aerials with a 500 ELM. I've also attached Really Right Stuff's quick release bracket (the 2P) to the flash bracket as all my bodies are fitted with their dedicated plate system. I like the adjustable handle angle of the Newton. Also, I've cable-tied Hasselblad's short release cable to the bracket and removed the regular mechanical cable release when using the 500 ELM. Carl Socolow _emaq_ wrote: > > Today, The Esteemed InfinityDT@aol.com gathered electrons and wrote: > > > though, to get the flash up over the lens. I like the grip for handheld > > shooting with the prism, even without flash. > > This is pretty much what I want to do also with the qr66...use it like the > hassy grip for regular shooting without the flash. I'll start looking for > a hassy grip. Bought one years go in a flea market but it didn't fit my > 500cm...wit was for the older C's. > > -- > _emaq_ > > No electrons were hurt in the making of this email. > DSS/DH Public Key 0x9399D2E4 > > ------------------------------ Date: Tue, 03 Oct 2000 18:28:24 -0400 From: Dan Cardish To: hasselblad@kelvin.net Subject: RE: fast leaves Message-ID: <3.0.6.32.20001003182824.00959dc0@pop.microtec.net> The centrifugal force at the center of the Earth is precisely balanced by the gravitational pull of the moon. However, since the near side of the earth is closer to the moon, the moon's pull is stonger, so the oceans are "pulled away" so to speak. Likewise, on the far side of the Earth, the centrifigal force is now greater, by the same magnitude (but opposite direction) as the moon's pull on the other side, so again the oceans are "pulled away" So there are two high tides as the earth rotates each day, assuming the moon is roughly in the same position in the sky 24 hours later. dan c. At 02:28 PM 03-10-00 -0500, Mark Wrigley (EDB) wrote: >>> These are just nagging little questions that I've been carrying around >and >>> wanting to unload. Just like why are there 2 high tides each day but the >>> moon only passes overhead once. >> >>It passes once per day overhead, once per day 'underfoot' ;-) >> > >Yeah, but when it passes underfoot, its gravitational pull means that there >should be a low tide where I am and a high tide in the antipodes. > >And to get back on topic, for those who wanna shoot full moons, there's a >gadget that looks like a slide rule which will work out the dates of full >moons (or any moon phase for that matter) for the next eight thousand years. >If only it could predict whether it will be overcast or not. > >http://www.moonstick.com/ > >I got one a few weeks ago, simply amazing. > >Mark >RJ > >---------------------------------------------------------------------- > >The Hasselblad Users Group Listserv is a public service of Absolute Internet, Inc., which is not responsible for its content. This mailing list is in no way affiliated with Victor Hasselblad AB, it's subsidiaries, or affiliates. > >To change your subscription status, go to: http://mail.kelvin.net/guest/RemoteListSummary/Hasselblad >Digest archives are stored at http://www.kelvin.net/hasselblad/hassy.htm >Searchable archives can be found at http://www.listquest.com/arts/index.html > > ------------------------------ Date: Tue, 03 Oct 2000 16:27:46 -0600 From: Patrick San Agustin To: Subject: Contax 645 vs Hasselblad Message-ID: Has anyone out there used the new contax 645 and compared it to their hassy stuff. I love my hasselblad equipment, but I also like autoexposure and the new look and feel of the new 645. I have been considering trading in all my hassy kit to get a new 645. Do people think it is worth the difference? Or am I just being carried away with all the new propaganda. I currently own a G2 and it certainly is an amazing system but has different uses than my MF hasselblad equipment. There is no way that I would ever use non-carl zeiss lenses!!! ------------------------------ Date: Wed, 4 Oct 2000 00:46:39 +0100 From: "Simon Lamb" To: "Q.G. de Bakker" , Subject: Re: fast leaves Message-ID: <005f01c02d94$3413daa0$2a12d3d4@simonhome> Are Rollei lenses not Zeiss? If so, and they can make faster leaf shutters in them, then why can't they do it for Hasselblad? Simon Q.G. de Bakker wrote: > Unless you can make better (faster) leaf shutters, like Rollei uses in their > PQS lenses. > InfinityDT@aol.com wrote: > > > << When a leaf shutter operates I assume it starts opening from the > centre, > > opens fully, then closes again. > > Thus the areas in the centre of the field will always be exposed longer > than > > the areas at the outer edge.>> > > > > That's why 1/500 is the practical limit of a leaf shutter. The faster the > > speed the more siginifcant the discrepancy becomes. ------------------------------ Date: Tue, 3 Oct 2000 19:51:07 EDT From: InfinityDT@aol.com To: hasselblad@kelvin.net Subject: Re: Contax 645 vs Hasselblad Message-ID: In a message dated 10/3/00 6:33:08 PM Eastern Daylight Time, pats@powersurfr.com writes: << Has anyone out there used the new contax 645 and compared it to their hassy stuff. >> <> By choice, I only own mechanical Hasselblads with leaf shutter lenses and 6x6 backs, so I don't think I would even attempt to make a comparison. Slap an eyelevel prism and a winder onto a 203FE, fit it with a 6x4.5 back and compare it handling-wise, feature-wise and price-wise to the Contax and I think I could make a strong case for the latter. I did handle the Contax 645 (Japanese-made as are its Zeiss lenses), found it no better made than the other two popular (and less costly) Japanese 645AF's. The Contax G's price point is below the Konica RF and way below the Leica, which makes it a great buy if you like its features. Not so with the 645. ------------------------------ Date: Tue, 3 Oct 2000 20:02:19 EDT From: InfinityDT@aol.com To: hasselblad@kelvin.net Subject: Re: fast leaves Message-ID: <37.afdfa5b.270bcd8b@aol.com> In a message dated 10/3/00 7:40:37 PM Eastern Daylight Time, simon@sclamb.com writes: << Are Rollei lenses not Zeiss? If so, and they can make faster leaf shutters in them, then why can't they do it for Hasselblad? >> The Rollei shutters are electronically controlled by motors in the body through a direct-drive. Perhaps that accounts for the 1/1000 speed capability. They could do it for Hasselblad, if Hasselblad wanted them to and made a compatible body, of course Zeiss and Hasselblad would have to consider any Rollei patents. Years ago I remember a Kodak folding camera with a mechanical 1/800 shutter. I don't think any of them actually did 1/800. Frankly, I fear that a lot of Hasselblads don't quite make it to 1/500 either, especially the C lenses that haven't been cleaned or re-sprung in a while. ------------------------------ Date: Tue, 3 Oct 2000 21:21:42 -0400 From: "LEO WOLK" To: Subject: Re: fast leaves Message-ID: <01c02da1$7453afc0$fe45570c@fofyplfq> I may be dating myself here, but as I remember, the Super Graphic's (60's ?) "claim to fame" was the availability of a lens with a (claimed) 1/1000 sec. leaf shutter. Leo. -----Original Message----- From: InfinityDT@aol.com To: hasselblad@kelvin.net Date: Tuesday, October 03, 2000 8:02 PM Subject: Re: fast leaves >...Years ago I remember a Kodak folding camera >with a mechanical 1/800 shutter. I don't think any of them actually did >1/800. Frankly, I fear that a lot of Hasselblads don't quite make it to >1/500 either, especially the C lenses that haven't been cleaned or re-sprung >in a while. ------------------------------ Date: Tue, 03 Oct 2000 18:08:11 -0400 From: Marcober To: hasselblad@kelvin.net Subject: Re: was US prices on Hasselblad Message-ID: <39DA58CB.CB01DD83@gate.net> With all the rabbis at the B&H room, its a mechia that things go as smoothly as they seem to go. Happy New Year Mark Berkley Henry Posner/B&H Photo-Video wrote: > At 03:07 AM 10/03/2000, you wrote: > >If you make a list of each member's opinion you get almost as many > >divergent opinions as there are members of this group. > > There's an old saying that if you put three rabbis in a room you'll get > four opinions. It seems to be true of Hassy owners too. :-) > > -- > regards, > Henry Posner > Director of Sales and Training > B&H Photo-Video, and Pro-Audio Inc. > http://www.bhphotovideo.com > > ---------------------------------------------------------------------- > > The Hasselblad Users Group Listserv is a public service of Absolute Internet, Inc., which is not responsible for its content. This mailing list is in no way affiliated with Victor Hasselblad AB, it's subsidiaries, or affiliates. > > To change your subscription status, go to: http://mail.kelvin.net/guest/RemoteListSummary/Hasselblad > Digest archives are stored at http://www.kelvin.net/hasselblad/hassy.htm > Searchable archives can be found at http://www.listquest.com/arts/index.html ------------------------------ Date: Tue, 3 Oct 2000 22:34:10 EDT From: BLADHASS@aol.com To: hasselblad@kelvin.net Subject: Re: Contax 645 vs Hasselblad Message-ID: <95.15b7d1e.270bf122@aol.com> One of my photographers is shooting with the Contax system. Yes, it is very nice, but he still wants a Hasselblad. I think the main reason is for the faster sync and the 6x6 format for wedding work. With the Hasselblad you can get your cake and eat it, since you can switch to a 645 back for portrait work in the studio. The Contax does have it all, but the autofocus is not really intended for fast, fast, work. But the metering system does work great under most any lighting condition. The other great thing is that it imprints F-stop, shutter speed, 120 or 220film, and lens length. But it is hard on batteries, especially compared to having to use none in the Hasselblad. Does it take great pictures, YES, YES, YES. Its a modern marvel compared to other 645 camera. It feels good in the hand, not great like the Hasselblad, but the difference is minor. Its build and quality are first rate. And you do not have to plug and unplug the sync cord when changing lens. I think it would be a better buy then a Rollei, but not better then a Hasselblad. If you have any question let me know my friend has used this Contax for about a year. He does have the 45mm, 80mm, 140mm, and the 210mm, plus the 220 vacuum back, grip, and the second battery pack, so a very complete outfit. Peter Peterson ------------------------------ Date: Tue, 3 Oct 2000 23:40:52 EDT From: Papyg@aol.com To: hasselblad@kelvin.net Subject: Re: Smile Photo Message-ID: <24.b48a831.270c00c4@aol.com> A number of years ago, I was thinking about buying a piece of Leica equipment. The price advertised by Smile in Popular Photography was substantially below that advertised by anyone else. When I called to order the item, I was told that there had just been a price increase and that the advertised price was no longer valid. I then followed Smile's advertising in Popular Photography for many months after Smile told me the price had increased. It remained a low ball price, notwithstanding the supposed price increase. I then called Smile, asked to speak with the manager, told the person who said he was the manager what I had observed and he told me to "go f--- myself." I wouldn't buy anything from Smile if my life depended on it. I have had nothing but honest and honorable dealings with both B&H and Adorama. Why fiddle with sleaze balls? ------------------------------ End of hasselblad V1 #1008 ************************** ---------------------------------------------------------------------- The Hasselblad Users Group Listserv is a public service of Absolute Internet, Inc., which is not responsible for its content. This mailing list is in no way affiliated with Victor Hasselblad AB, it's subsidiaries, or affiliates. To change your subscription status, go to: http://mail.kelvin.net/guest/RemoteListSummary/Hasselblad Digest archives are stored at http://www.kelvin.net/hasselblad/hassy.htm Searchable archives can be found at http://www.listquest.com/arts/index.html