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Thread: Building the "Sinar Norma Handy" camera!

  1. #31

    Re: Building the "Sinar Norma Handy" camera!

    Quote Originally Posted by EdSawyer View Post
    I find the Mamiya 7 43mm viewfinder a good match, plus it has a bubble level built-in. You can find them for $100-ish, depending on when/where you look. -Ed

    Thanks for that Ed! No finders on the radar as of yet, but sure does look awesome.

    Mamiya 7 43mm finder by Nokton48, on Flickr

    Mamiya 7 43mm Optical Viewfinder 2 by Nokton48, on Flickr
    - Sinar Norma User

  2. #32

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    Re: Building the "Sinar Norma Handy" camera!

    I've had an used a lot of finders, the ones for the Mamiya 7 are as nice as they get, really, especially for really wide angles. It has easily adjustable diopter, plus the built-in bubble level helps too. The framelines show a region for close-up use as well. I actually have 2 of these, one for my mamiya 7 and the other for the Cambo Wide.

  3. #33

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    Re: Building the "Sinar Norma Handy" camera!

    This is interesting. I have been looking for something new to play with maybe this can be my new walkaround camera.

  4. #34

    Re: Building the "Sinar Norma Handy" camera!

    Hi Ed,

    I've been looking for the Mamiya 7 43mm Viewfinder, and today I finally got one.
    Not cheap, though at $250. I just noticed it is missing the rubber eyecup.
    I can deal with that, I am sure. This is NOT an easy to find item.

    Mamiya 43mm Viewfinder #1 by Nokton48, on Flickr

    Mamiya 43mm Viewfinder #2 by Nokton48, on Flickr

    I may need to mount this on a spacing block, as I am seeing in the "modern" Sinar Handy. Ground glass to viewfinder comparison will tell me what to do.
    Last edited by Daniel Unkefer; 28-Oct-2017 at 11:54.
    - Sinar Norma User

  5. #35

    Re: Building the "Sinar Norma Handy" camera!

    OK So my shoe (luckily) is centered L-R in regards to the lens (a good thing). So if I have this right, the viewfinder center to lens center, (the viewfinder height) is the other most critical design element. Field size of course depends what type of holder I happen to be using. Mainly I will use this camera with 4x5 sheet film, although I might try some 70mm just for an experiment and to test backs I am guessing I will need to raise the finder up a bit, (a machined aluminum block would do it), although the Cambo Wide does not seem to have this. And I think it is 65mm on 4x5 as well.

    Not many finders are as wide as the 43mm Mamiya. I had a Voigtlander 15mm Voigtlander finder but it was not a good experience for me; too much barrel distortion. Too bad for me the Linhof finders only go to 75mm; I would consider modifying one.

    This is going to be fun to have for occasional use. It also fills in this part of my Norma system.
    - Sinar Norma User

  6. #36

    Re: Building the "Sinar Norma Handy" camera!

    The Linhof Technar is not all that different from what I am building. But it appears to be panoramic format.

    Linhof Technar by Nokton48, on FlickrYashica SLR Viewfinder on Sinar Handy by Nokton48, on Flickr
    Last edited by Daniel Unkefer; 29-Oct-2017 at 11:52.
    - Sinar Norma User

  7. #37
    Jac@stafford.net's Avatar
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    Re: Building the "Sinar Norma Handy" camera!

    I might try some 70mm just for an experiment and to test backs I am guessing I will need to raise the finder up a bit, (a machined aluminum block would do it), although the Cambo Wide does not seem to have this.
    Some external viewfinders tilt down-forward to accommodate closer focusing. Regarding the machined block, there are adequate plastic flash shoe extenders. To use smaller films, such as 2.25"x* a little masking tape over the finder does a good job.

    Click image for larger version. 

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    Keep it simple & cost effective for early prototypes.

    Here is a 4x5 with 47mm S/A, universal back and simple viewfinder riser.

  8. #38

    Re: Building the "Sinar Norma Handy" camera!

    That is all excellent advice. Thanks.

    And by the way, beautiful WA camera you have there!
    - Sinar Norma User

  9. #39
    Jac@stafford.net's Avatar
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    Re: Building the "Sinar Norma Handy" camera!

    Quote Originally Posted by Daniel Unkefer View Post
    That is all excellent advice. Thanks.

    And by the way, beautiful WA camera you have there!
    You are welcome. BTW I am trying to modify a Sinar Alpina to a 47mm XL. I got a spare, shortened rail and am trying to make a real short bellows substitute. I'll be watching your progress as I struggle.

  10. #40

    Re: Building the "Sinar Norma Handy" camera!

    Many years ago built a very similar camera for 6x9 roll film back using an Arca Swiss back and carved on milling machine frame from a block of aluminum and Schneider 47mm super angulon and Schneider focus mount for the 47mm SA. Worked really well.

    View finder used was a 50mm mamiya press viewfinder, like this one:
    https://i.pinimg.com/originals/6f/ce...15e0c91091.jpg

    If image accuracy is needed, ground glass viewing is mostly a must. Most of wide angle viewfinders have distortion and other problems. Alternative to this could be to use a film-video directors view finder like this:
    http://cavision.biz/images/products/detail/VFM11X.jpg


    It is shoe mount and has tilt-distance compensation. Works good enough to get the job done.

    Sinar handy idea has been around for a long time. There have been many versions of this idea in recent years from Hasselblad flex body, Cambo wide, Horseman wide, Alpa and many others. Really a speciality camera, but can be fun and interesting to use. Suggest using a 4x5 graphmatic to get six sheets of 4x5 film in a small package if a 4x5 film version is used. This is much easier and more convent than lugging around a stack of 4x5 film holders. For roll film, there are many choices that work well.


    Bernice

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