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Thread: Any ideas regarding this 4x5 SLR?

  1. #1

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    Any ideas regarding this 4x5 SLR?

    I have long had a dream of building a 4x5 SLR.....If anyone has ideas regarding this project I'd love to hear from you....The camera will be tested the moment the rain stops......

    http://homepages.ihug.com.au/~razzle...R/4x5_slr.html

  2. #2

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    Re: Any ideas regarding this 4x5 SLR?

    Pretty cool

    Me, I'm too lazy, so I simply use two RB Graflex 4x5s, one Graflex 5x7, and one Graflex 3 1/4 x 4 1/4 extended bellows model for 6x9 roll film backs.

    Plus I can put many different lenses on my Graflex cameras by simply making custom lens boards.
    When I grow up, I want to be a photographer.

    http://www.walterpcalahan.com/Photography/index.html

  3. #3
    Greg Lockrey's Avatar
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    Re: Any ideas regarding this 4x5 SLR?

    Way too cool. Is there going to be wideangle version? You guys "Down Under" do come up with some unique camera builds. I seen a Stereo 4x5 built by an Aussie a couple of years ago. It had to have weighed a "ton" also.
    Greg Lockrey

    Wealth is a state of mind.
    Money is just a tool.
    Happiness is pedaling +25mph on a smooth road.



  4. #4
    Whatever David A. Goldfarb's Avatar
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    Re: Any ideas regarding this 4x5 SLR?

    Is that made out of a Leitz-Linhof reflex viewer designed for use on copy stands?

    When you trip the shutter, does the mirror move out of the way automatically, or do you have to do it manually? I guess an interesting way to do that would be to put in a cable release fitting so that when the mirror goes up, the shutter releases.

  5. #5

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    Re: Any ideas regarding this 4x5 SLR?

    Quote Originally Posted by Greg Lockrey View Post
    Way too cool. Is there going to be wideangle version? You guys "Down Under" do come up with some unique camera builds. I seen a Stereo 4x5 built by an Aussie a couple of years ago. It had to have weighed a "ton" also.
    Um, Greg, there are few, if any, retrofocus lenses that cover 4x5. And SLRs need lenses with long enough back focus to clear the mirror. For lenses shorter than normal, this usually means retrofocus.

    There is, though what I think is the ancient Bronica solution. Falling, not rising, mirror, but that requires another shutter to block light entering from the viewing screen while the exposure is taken.

    Dean, does your prototype's mirror rise or fall?

    Cheers,

    Dan

  6. #6
    Greg Lockrey's Avatar
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    Re: Any ideas regarding this 4x5 SLR?

    Of course, what was I thinking? You'd have to go with a twin lens set up.
    Greg Lockrey

    Wealth is a state of mind.
    Money is just a tool.
    Happiness is pedaling +25mph on a smooth road.



  7. #7

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    Re: Any ideas regarding this 4x5 SLR?

    Nice!
    But it's hard to beat my old 4x5 Super D Graflex with semi-automatic diaphragm. It's only real drawbacks are that it weighs a ton and no retro-wideangle lenses had been invented when it was made. The 3x4 model is actually a lot more usable.
    Wilhelm (Sarasota)

  8. #8

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    Re: Any ideas regarding this 4x5 SLR?

    Brilliant Dean.... Patent It!

  9. #9

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    Re: Any ideas regarding this 4x5 SLR?

    Quote Originally Posted by Dan Fromm View Post
    Dean, does your prototype's mirror rise or fall?

    Cheers,

    Dan
    The mirror is raised to shut out light from the viewing screen....The body of this camera was actually manufactured by Zeiss and originally designed as a microscope camera, but I saw the potential for use as a normal reflex.
    Hopefully it will serve as a basis on which to experiment further.

  10. #10

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    Re: Any ideas regarding this 4x5 SLR?

    Dean, it looks great! I'll be watching this one for sure.

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