1. I agree with others, you need sleep.
2. This sounds a little like the Rollei 2000 and 3003, which basically took
the Hassleblad shutter-box-with-attachments concept and shrunk it down to a
35mm size. The expensive, great quality, but too complex and wierd beastie
died a quick death. See http://www.cameraquest.com/rol3003.htm.
3. This concept also sounds like some of the more bizzare 35mm cameras of
the 50's and 60's, when makers were trying to find the best blend of size,
style, and features for a modern SLR; while slapping so many doo-dads onto
the camera that it wasn't very practical. The Germans were famous for this,
and the market showed them that the design-it-cost-no-object wasn't a viable
option for long term, financial success. Look too at the Compass. Others
were some of the Zeiss incarnations, especially the Contaflex, the only
production TLR for 35mm.
Oh, and most manufacturers decided that it was better to fix the relatively
large film transport mechanism and use reflection to transfer the viewing
image to the also-fixed viewing system. I think that the large moving mass
of the film assembly would be too complex to get moving fast enough for most
exposures. You wouldn't be able to get it up and down fast enough for 1/500
sec. Also, wouldn't you get funny, uneven exposures from that setup?
Skip
From: "Olympus" <olympus@xxxxxxxxxxx>
Reply-To: olympus@xxxxxxxxxxxxxxx
To: olympus@xxxxxxxxxxxxxxx
Subject: [OM] Camera design question
Date: Mon, 7 Jan 2002 09:45:44 -0800
Since I have not slept in over 40 hours.. the question probably won't make
sense to me tomorrow.. but..
As far as camera design, has anybody thought about designing a 35mm more
like a large format??
Ground glass back, see the lens straight through, and the film FLIPS DOWN,
in place of the mirror, there is no mirror, and there is no need for
curtains either, the mirror duration would be it... Straight passthrough,
with the film flipping down for exposure time control. This would make it
very small, push that plane very far forward which means the camera body
would be smaller, do a double spring and your shutter speed can be as fast
as you want it to be (well, within mechanics limits), and because the film
plane is closer, the lenses can be a lot smaller. Parallax, is impossible,
the image you see is slightly bigger than what would be on the film, but
only by like 2-50r so; DOF preview is easy to do, and if you have a
translucent LCD film in front of your ground glass, you can actually setup
the composition, and touch the locations on the screen you want to do spot
metering on.
Am I smoking crack, or has something thought/done this before?? Exposure
can have instead of a mirror lockup, a "film lockdown" in the correct
plane.
The only difficulty is keeping the film plane rigid and consistant. I have
not figured out how to prevent light leaks to the film, as the film will
have to cross two planes, but I'm working on it....
maybe if I get some sleep, it'll come to me by the afternoon..
Albert
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