6x7 pinhole camera made from koni omega 220 back... my first try

[heespharm]

Ok so i've wanted to make a pinhole for a while but I wanted to do it the "right way"... It came to me that i could use a junker back that doesn't work on the camera anymore... plus it's 6x7 so that's pretty convenient... So I measured the length to the film plane and it was about 35mm so I used a calculator and calculated I needed about a .24mm aperture to cover the 6x7 area...

worked out pretty well... I can use the dark slide as the shutter or i can use a piece of tape up front... plus the back has a counter on it and an advance knob to measure precisely to the next frame...

If anybody has used a koni omega film back you know how cool the film advance is...

Check it out: (excuse the lone piece of tape at the bottom i'm glueing a tripod socket as I was taking the pics)

http://farm5.static.flickr.com/4057/4368542511_c7cd11f0e0.jpg


http://farm5.static.flickr.com/4071/4369291874_df9ea2cc10.jpg


Shot counter:

http://farm3.static.flickr.com/2738/4369289740_dab1f143fe.jpg


The test shot negs:

http://farm3.static.flickr.com/2767/4368541821_22fc1f66a3_b.jpg


Pinhole scan:
http://farm3.static.flickr.com/2785/4368570199_a123fc8d0a.jpg


not to bad for my first try?

[DWThomas]

Excellent! Looks as though you've got a very good result. I too have enjoyed adapting "real" cameras (http://www.pbase.com/dw_thomas/pinhole) to get decent film handling.