Re: leaf shutter for 35mm? (was RE: how good)
- Original Message - From: <[EMAIL PROTECTED]> Subject: Re: leaf shutter for 35mm? (was RE: how good) > > The Mamiya RB67 system, which is a big SLR, has a dark black flap that sits > behind the mirror and swings up just after the mirror has lifted, and after > the leaf shutter has closed immediately before exposure-time. Its > well-sealed enough that a separate focal plane shutter is not necessary to > prevent fogging. My old Contaflex worked much the same way. The mirror was also the light baffle. William Robb - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re: leaf shutter for 35mm? (was RE: how good)
Dave described: > The Mamiya RB67 system, which is a big SLR, has a dark black flap that sits > behind the mirror and swings up just after the mirror has lifted, and after > the leaf shutter has closed immediately before exposure-time. Its > well-sealed enough that a separate focal plane shutter is not necessary to > prevent fogging. I've seen one SLR with a leaf shutter in which the back of the mirror itself _was_ that flap (i.e. there wasn't a separate piece to lift after the mirror moved). Don't recall who made it. -- Glenn, approx. 937 messages backlogged, but spot-checking latest arrivals now and then - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re: leaf shutter for 35mm? (was RE: how good)
Bill D. Casselberry wrote: > Yeah, but like all the P&S mentioned - these are all > separate viewfinder type cameras. If you want TTL viewing > you need the mirror box and an open leaf shutter which then > mandates a second focal plane shutter or some other mechanism > to keep light off the film 'til you actually shoot. The Mamiya RB67 system, which is a big SLR, has a dark black flap that sits behind the mirror and swings up just after the mirror has lifted, and after the leaf shutter has closed immediately before exposure-time. Its well-sealed enough that a separate focal plane shutter is not necessary to prevent fogging. Its not quite as complicated as an actual shutter but it has the same effect. Cheers, - Dave - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re: leaf shutter for 35mm? (was RE: how good)
Actually, it would not be such a problem. As in leaf shutter lenses for focal plane shutter medium format cameras, you would have to manually cock the leaf shutter, and set the focal plane shutter on a very low speed. When you fired the shutter, the leaf shutter would close, the mirror would go up, the focal plane shutter would open, the leaf shutter would fire, the focal plane shutter would close, the mirror would drop. Then you would manually have to cock the leaf shutter again to open it. If you insisted on the leaf shutter opening and cocking automatically, you would need a new body and the lens would not work with older bodies. In other words you would have to give up some automation with the leaf shutter, incuding auto metering. Why not just buy a body that will sync at 1/250 and be done with it? Ciao, Graywolf http://pages.prodigy.net/graywolfphoto - Original Message - From: Len Paris <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, May 04, 2002 9:39 AM Subject: Re: leaf shutter for 35mm? (was RE: how good) > Think about it. The lens shutter would have to be open for > focussing and composing the picture. Then, before you could > actually shoot, you'd have to close the lens shutter, move the > mirror out of the path, open the focal plane shutter and, > lastly, trigger the lens shutter to expose the film. > > Pentax would have to build an entirely new K-mount 35mm body to > do that. They know how to do it, or there wouldn't be any 645 > or 67 bodies that could use leaf shutter lenses, either. Bottom > line is: No. Such a lens would not work with any K-mount body. > > Len > --- > > - Original Message - > From: "Johan Schoone" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Saturday, May 04, 2002 7:00 AM > Subject: Re: leaf shutter for 35mm? (was RE: how good) > > > > > > That would make a great addition to the lens catalog. Would > the expected > > sales volume justify its introduction? Would such a lens work > with any > > K-mount body? > > -- > - > This message is from the Pentax-Discuss Mail List. To unsubscribe, > go to http://www.pdml.net and follow the directions. Don't forget to > visit the Pentax Users' Gallery at http://pug.komkon.org . - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re: leaf shutter for 35mm? (was RE: how good)
Think about it. The lens shutter would have to be open for focussing and composing the picture. Then, before you could actually shoot, you'd have to close the lens shutter, move the mirror out of the path, open the focal plane shutter and, lastly, trigger the lens shutter to expose the film. Pentax would have to build an entirely new K-mount 35mm body to do that. They know how to do it, or there wouldn't be any 645 or 67 bodies that could use leaf shutter lenses, either. Bottom line is: No. Such a lens would not work with any K-mount body. Len --- - Original Message - From: "Johan Schoone" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, May 04, 2002 7:00 AM Subject: Re: leaf shutter for 35mm? (was RE: how good) > > That would make a great addition to the lens catalog. Would the expected > sales volume justify its introduction? Would such a lens work with any > K-mount body? > -- - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re: leaf shutter for 35mm? (was RE: how good)
Mishka <[EMAIL PROTECTED]> wrote: > For those saying it's difficult: > Olympus Stylus Epic, street price $100 for the whole camera, 35mm/2.8 > lens, shutter 4-1/1000s. This is a p&s camera with separate viewfinder. That is a completely different story. > As far as OPC, Pentax is making it for 645 and 67. Seems like a logical > step to make one or too for 35mm as well. SMC-FA 85mm/2 LS -- wouldn't > THAT be sweet? That would make a great addition to the lens catalog. Would the expected sales volume justify its introduction? Would such a lens work with any K-mount body? -- http://members.chello.nl/~j.schoone\\|// Registered Linux user #78364 - The Linux Counter - http://counter.li.org Assume nothing, expect anything. - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re[2]: leaf shutter for 35mm? (was RE: how good)
Robert, I'll try it out and let the list know how it went. Bruce Saturday, May 04, 2002, 1:36:30 AM, you wrote: RH> Bruce Dayton wrote: RH> [snip] >> Now I guess I'm going to have to try the high speed synch and see how >> well it does. Also, remember that fill flash is usually compensated >> down a stop or two, which helps bring back the guide number a bit. RH> I hope you will report back here on how it goes. There probably is an RH> MZ-S in my (distant) future. RH> Bob RH> - RH> This message is from the Pentax-Discuss Mail List. To unsubscribe, RH> go to http://www.pdml.net and follow the directions. Don't forget to RH> visit the Pentax Users' Gallery at http://pug.komkon.org . - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re: leaf shutter for 35mm? (was RE: how good)
Bruce Dayton wrote: [snip] > Now I guess I'm going to have to try the high speed synch and see how > well it does. Also, remember that fill flash is usually compensated > down a stop or two, which helps bring back the guide number a bit. I hope you will report back here on how it goes. There probably is an MZ-S in my (distant) future. Bob - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re[2]: leaf shutter for 35mm? (was RE: how good)
Funny you should mention that. The last wedding I shot - last Saturday, I did the very same thing. Rather than try to deal with fill flash - which I used to do with the PZ-1p, I just had one of the bridesmaids help with a reflector. Generally worked pretty well. Bruce Friday, May 03, 2002, 5:06:03 PM, you wrote: WR> - Original Message - WR> From: Mishka WR> Subject: Re: leaf shutter for 35mm? (was RE: how good) WR> Hey, bros, whaddaya say, are LS lenses useful >> (alas I haven't tried them - yet)? WR> Yes. I can now do outdoor fill flash portraiture with my 6x7. WR> Here is something to think about: WR> The 6x7 is very limited in it's ability to photograph using fill WR> flash. So much so that I very quickly gave up on trying. WR> Instead, I bought/ built a few reflectors, and learned how to WR> use real light. WR> Its actually pretty easy. WR> Probably not much good for reportage style photography, but the WR> 6x7 isn't much good for that either. WR> William Robb WR> - WR> This message is from the Pentax-Discuss Mail List. To unsubscribe, WR> go to http://www.pdml.net and follow the directions. Don't forget to WR> visit the Pentax Users' Gallery at http://pug.komkon.org . - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re[2]: leaf shutter for 35mm? (was RE: how good)
Robert, That would be my guess. The likely use is for portraits in sunlight to remove shadows and add catchlights in the eyes. In that case, you are likely to only be about 10 feet away. Even a lower guide number would be sufficient. Those who use leaf shutters with fill flash are largely doing the same basic thing. That is why I am thinking that the leaf shutter is not very necessary for the 35mm. When a more powerful version of the AF360FGZ comes out, then we're talking! That would be a much bigger seller than a leaf shutter lens. Now I guess I'm going to have to try the high speed synch and see how well it does. Also, remember that fill flash is usually compensated down a stop or two, which helps bring back the guide number a bit. Bruce Friday, May 03, 2002, 4:53:48 PM, you wrote: RH> Bruce Dayton wrote: >> Mishka, >> >> What are you needing 1/1000 flash synch for? Would not the MZ-S and >> AF360FGZ do the job you are asking for? It can synch up to 1/6000. Or >> is flash distance a problem? RH> Has anybody actually used this feature, who can tell us how it works in RH> the real world? Haven't seen any discussion of that. RH> I assume it reduces the guide number (i.e., distance) by quite a bit. I RH> recall that Olympus had a flash like this years ago, and its guide RH> number was extremely low when in high-shutter-speed mode, much reduced RH> from normal operation. RH> Bob RH> - RH> This message is from the Pentax-Discuss Mail List. To unsubscribe, RH> go to http://www.pdml.net and follow the directions. Don't forget to RH> visit the Pentax Users' Gallery at http://pug.komkon.org . - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re: leaf shutter for 35mm? (was RE: how good)
Mark Erickson added ... > > Doable, but maybe not very profitable for Pentax I suspect that may be Pentax reasoning for not "breaking ground" w/ a leaf shutter for 35mm. They probably figure that the fields of photography where a leaf is useful are those where serious players will be using the 645 or 67 anyway - and they provide leafs for those formats. Bill - Bill D. Casselberry ; Photography on the Oregon Coast http://www.orednet.org/~bcasselb [EMAIL PROTECTED] - - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re: leaf shutter for 35mm? (was RE: how good)
- Original Message - From: Mishka Subject: Re: leaf shutter for 35mm? (was RE: how good) Hey, bros, whaddaya say, are LS lenses useful > (alas I haven't tried them - yet)? Yes. I can now do outdoor fill flash portraiture with my 6x7. Here is something to think about: The 6x7 is very limited in it's ability to photograph using fill flash. So much so that I very quickly gave up on trying. Instead, I bought/ built a few reflectors, and learned how to use real light. Its actually pretty easy. Probably not much good for reportage style photography, but the 6x7 isn't much good for that either. William Robb - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re: leaf shutter for 35mm? (was RE: how good)
Bruce Dayton wrote: > Mishka, > > What are you needing 1/1000 flash synch for? Would not the MZ-S and > AF360FGZ do the job you are asking for? It can synch up to 1/6000. Or > is flash distance a problem? Has anybody actually used this feature, who can tell us how it works in the real world? Haven't seen any discussion of that. I assume it reduces the guide number (i.e., distance) by quite a bit. I recall that Olympus had a flash like this years ago, and its guide number was extremely low when in high-shutter-speed mode, much reduced from normal operation. Bob - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
RE: leaf shutter for 35mm? (was RE: how good)
http://mail2web.com/ . - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org . - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re: leaf shutter for 35mm? (was RE: how good)
From: Mark Erickson > If you're ok using stop-down metering, have mirror lockup in your SLR > body, and 1/500 is fast enough for you, you can put a Pentax 67 90mm > F2.8 leaf shutter on your lens today! That's a very good point! But somehow it feels like lighting cigarette with a blow torch. Doable of course... :) > A truly integrated leaf-shutter lens would support open-aperture > metering, automatically cock the shutter between shots, and have > automatic communication between the leaf shutter, camera body, and > flash. That's exactly what I was talking about! > Doable, but maybe not very profitable for Pentax As far as profitability... Of course this is far fetched, but don't you think, availability of such a lens would do better for putting the system ahead of competition than trying to match 1/12000 shutter speed and similar nonsense? Hey, bros, whaddaya say, are LS lenses useful (alas I haven't tried them - yet)? > From: Bruce Dayton > > What are you needing 1/1000 flash synch for? Daytime fill flash? Any wedding photographers out there? > Would not the MZ-S and AF360FGZ do the job you are asking for? It > can synch up to 1/6000. Or is flash distance a problem? The problem is that I need a special flash and a special body. That's what $1000+? Somehow I feel a 645 LS lens is a more affordable option. And I kinda like my LX and ME-Super. Yahoo! Health - your guide to health and wellness http://health.yahoo.com - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
RE: leaf shutter for 35mm? (was RE: how good)
On 3 May 2002 at 13:02, Paris, Leonard wrote: > I'm sure there are a zillion other little things to consider but I keep > getting interrupted here at work, so I can't sit down and think it all > through in detail. The other thing to consider too is that for the majority of photographers the number of shots that they have forfeited through lack of the availability of a leaf-shutter on their 35mm kit would in most instances be pretty small, particularly for those of use who rarely use flash :-) Cheers, Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications.html - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re: leaf shutter for 35mm? (was RE: how good)
-Mishka wrote- > Which brings me to the question, does anyone know, what may be the > reason for not making leaf shutter lenses for 35mm SLRs, like they have > for P-6x7 (and almost everything 6x6)? That would bring sync speed to > the *really* nice 1/1000! If you're ok using stop-down metering, have mirror lockup in your SLR body, and 1/500 is fast enough for you, you can put a Pentax 67 90mm F2.8 leaf shutter on your lens today! A truly integrated leaf-shutter lens would support open-aperture metering, automatically cock the shutter between shots, and have automatic communication between the leaf shutter, camera body, and flash. Doable, but maybe not very profitable for Pentax --Mark - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re[2]: leaf shutter for 35mm? (was RE: how good)
Mishka, What are you needing 1/1000 flash synch for? Would not the MZ-S and AF360FGZ do the job you are asking for? It can synch up to 1/6000. Or is flash distance a problem? Bruce Friday, May 03, 2002, 2:22:51 PM, you wrote: M> Bill, you have missed my point. M> I have never argued for LS-only SLR. I want to have LS lenses ON TOP of M> what SLR already has, just like 6x7 does. That would give me 1/8000 (or M> whatever) max speed when I need it (if anyone needs *that*) and 1/1000 M> sync when I need it (which is often). M> Oly p&s was simply an example that a 35mm reasonably fast LS lens *is M> not* a technical difficulty. M> M> For some reason I see SLR manufacturers competing adding tons of more M> or less useless (or, I should probably say, highly specialized) M> features (eg, 12fps motors) when there are some obvious enhancements M> that would benefit a huge segment of users, but no one seems to care. M> What are those marketing guys paid for? I hope someone from Pentax M> reads this M> >> From: Bill D. Casselberry >> Subject: Re: leaf shutter for 35mm? (was RE: how good) >> Date: Fri, 03 May 2002 13:31:18 -0700 >> >> >> >> Mishka wrote: >> >> > For those saying it's difficult: >> > Olympus Stylus Epic, street price $100 for the whole camera, >> > 35mm/2.8 lens, shutter 4-1/1000s. >> >> Yeah, but like all the P&S mentioned - these are all >> separate viewfinder type cameras. If you want TTL viewing >> you need the mirror box and an open leaf shutter which then >> mandates a second focal plane shutter or some other mechanism >> to keep light off the film 'til you actually shoot. >> >> Bill M> Yahoo! Health - your guide to health and wellness M> http://health.yahoo.com M> - M> This message is from the Pentax-Discuss Mail List. To unsubscribe, M> go to http://www.pdml.net and follow the directions. Don't forget to M> visit the Pentax Users' Gallery at http://pug.komkon.org . - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re: leaf shutter for 35mm? (was RE: how good)
Mishka wrote: > For those saying it's difficult: > Olympus Stylus Epic, street price $100 for the whole camera, > 35mm/2.8 lens, shutter 4-1/1000s. Yeah, but like all the P&S mentioned - these are all separate viewfinder type cameras. If you want TTL viewing you need the mirror box and an open leaf shutter which then mandates a second focal plane shutter or some other mechanism to keep light off the film 'til you actually shoot. Bill - Bill D. Casselberry ; Photography on the Oregon Coast http://www.orednet.org/~bcasselb [EMAIL PROTECTED] - - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re: leaf shutter for 35mm? (was RE: how good)
They do not have leaf shutters. The Leica has a horizontal running cloth focal plane shutter. "[EMAIL PROTECTED]" wrote: > Johan Schoone wrote: > I haven't seen leaf shutters that can do 1/1000. > The Leica M rangefinders have long been able to > reach 1/1000 second. So could the Leica CL and > Minolta CLE,I think. -- Shel Belinkoff mailto:[EMAIL PROTECTED] http://home.earthlink.net/~belinkoff/ "When a man's best friend is his dog, that dog has a problem." --Edward Abbey - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re: leaf shutter for 35mm? (was RE: how good)
Johan Schoone wrote: I haven't seen leaf shutters that can do 1/1000. It's rare, but it's there: A few of the AF point-and-shoot compacts, such as the Olympus Stylus Epic, can do 1/1000 second. Back in the 1980s, the Olympus XA-4 could do 1/750 second. The Vivitar 35 EM, a late 70s or 1980s knockoff of the Minox 35, reached 1/1000 second. The Leica M rangefinders have long been able to reach 1/1000 second. So could the Leica CL and Minolta CLE,I think. In the 1950s, according to http://www.cameraquest.com, one of the Zeiss Ikons achieved 1/1250 second! In APS, the Contact Tix can do 1/800 or 1/1000 second, I think. The Canon Elph Jr., 1/800. If the recently introduced Contax T* 3 can surpass 1/500 second, I'd like to know. [EMAIL PROTECTED] mail2web - Check your email from the web at http://mail2web.com/ . - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re: leaf shutter for 35mm? (was RE: how good)
For those saying it's difficult: Olympus Stylus Epic, street price $100 for the whole camera, 35mm/2.8 lens, shutter 4-1/1000s. As far as OPC, Pentax is making it for 645 and 67. Seems like a logical step to make one or too for 35mm as well. SMC-FA 85mm/2 LS -- wouldn't THAT be sweet? Yahoo! Health - your guide to health and wellness http://health.yahoo.com - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re: leaf shutter for 35mm? (was RE: how good)
03 May 02 Mishka <[EMAIL PROTECTED]> wrote: > > Which brings me to the question, does anyone know, what may be the > reason for not making leaf shutter lenses for 35mm SLRs, like they have > for P-6x7 (and almost everything 6x6)? That would bring sync speed to > the *really* nice 1/1000! Mishka, I'm just guessing, but... Cost, Complexity, (ease of manufacture, reliability, cost again... ), Slower fastest shutter speeds. The cost-benefit ratio probably doesn't make as much sense in a primarily consumer-market, hand-held camera like a 35mm SLR. But for MF or LF cameras that are more often used for studio work, and in a professional market where cost is less of an issue, an in-lens leaf shutter is probably easier to justify. On the other hand, some Topcon models were made with a "lens shutter" rather than a focal plane shutter. I've always assumed that implied a leaf shutter, but never looked into it in detail. Topcon PR II / DeJUR DEKON-SR -1960 - Lens Shutter Reflex WINK MIRROR - 1960 - Lens Shutter Reflex WINK E MIRROR / TOPCONETTE Beseler - 1962 - Lens Shutter Reflex WINK S MIRROR- 1963 - Lens Shutter Reflex WINK MIRROR (Prototype) - 1962 - Lens Shutter Reflex WINK MIRROR S II (Prototype) - 1963 - Lens Shutter Reflex UNI / RE Auto Hanimex / AUTO 100 Beseler 54 A 1965 Lens Shutter Reflex UNIREX - 1969 - Lens Shutter Reflex UNIREX EE - 1970 - Lens Shutter Reflex OPC (Obligatory Pentax Content) -- Pentax claims the first automatic-shutter camera (aperture priority AE) in the ES, introduced in 1971. But isn't there some debate that they were beaten to the punch by (?) the Topcon Unirex EE, introduced in 1970 ? I'm working with some old neurons here, so I'm not certain... Regards, Tim Engel - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re: leaf shutter for 35mm? (was RE: how good)
Rollei does 1/1000: http://www.rollei.de/cct/files/rollei/data/DB_System6000_d.pdf There're lots of cheap 35mm cameras (e.g. all p&s) that have LS lenses, so it can't be *that* difficult. > From: Johan Schoone > Subject: Re: leaf shutter for 35mm? (was RE: how good) > Date: Fri, 03 May 2002 10:24:46 -0700 > > Maybe because of their complexity. > > I haven't seen leaf shutters that can do 1/1000. They usually max out > at 1/500, some at 1/400. Yahoo! Health - your guide to health and wellness http://health.yahoo.com - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
RE: leaf shutter for 35mm? (was RE: how good)
I can only guess. So here goes: I haven't seen any leaf shutter lenses in the range of f/1.2 or f/1.4. Could be design difficulties, perhaps? There'd still have to be a sort of focal plane shutter and mirror arrangement, like the hasselblad, because you'd have to have at least one shutter closed while composing and focusing so that you don't expose the film. I guess a Dark slide could be used, too. We'd lose all of our speeds above 1/1000. Now, with the MZ-S and the flash designed for it, we get flash synch at high speeds, above 1/180th. I'm sure there are a zillion other little things to consider but I keep getting interrupted here at work, so I can't sit down and think it all through in detail. Len --- -Original Message- From: Mishka [mailto:[EMAIL PROTECTED]] Sent: Friday, May 03, 2002 11:57 AM To: [EMAIL PROTECTED] Subject: leaf shutter for 35mm? (was RE: how good) Which brings me to the question, does anyone know, what may be the reason for not making leaf shutter lenses for 35mm SLRs, like they have for P-6x7 (and almost everything 6x6)? That would bring sync speed to the *really* nice 1/1000! > From: Ron Bhanukitsiri > Subject: RE: how good > Date: Fri, 03 May 2002 08:56:27 -0700 > > - > > 1/180 flash sync speed - I can't understand how Pentax could go > backward on this! The PZ-1 has a nice 1/250! 1/180 is in nowhere > land, like the 1/100 sync that came down all the way from the ME! Yahoo! Health - your guide to health and wellness - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
Re: leaf shutter for 35mm? (was RE: how good)
In local.pentax, you wrote: > Which brings me to the question, does anyone know, what may be the > reason for not making leaf shutter lenses for 35mm SLRs, like they have > for P-6x7 (and almost everything 6x6)? That would bring sync speed to > the *really* nice 1/1000! Maybe because of their complexity. I haven't seen leaf shutters that can do 1/1000. They usually max out at 1/500, some at 1/400. -- http://members.chello.nl/~j.schoone\\|// Registered Linux user #78364 - The Linux Counter - http://counter.li.org Assume nothing, expect anything. - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
leaf shutter for 35mm? (was RE: how good)
Which brings me to the question, does anyone know, what may be the reason for not making leaf shutter lenses for 35mm SLRs, like they have for P-6x7 (and almost everything 6x6)? That would bring sync speed to the *really* nice 1/1000! > From: Ron Bhanukitsiri > Subject: RE: how good > Date: Fri, 03 May 2002 08:56:27 -0700 > > - > > 1/180 flash sync speed - I can't understand how Pentax could go > backward on this! The PZ-1 has a nice 1/250! 1/180 is in nowhere > land, like the 1/100 sync that came down all the way from the ME! Yahoo! Health - your guide to health and wellness http://health.yahoo.com - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
