Holga 6x12 mod

[OlivierAOP]

Here's another DIY 6x12 camera. Holga 120WPC body with pinhole assembly removed and front + film gate opened up. 3D-printed interchangeable lens mount.

Currently testing a 90mm f/5.6 Topcor, planning to adapt a 65mm f/7 Topcor and a Schneider 135mm f/8 Repro-Claron. DIY reverse Galilean finder @ 0.5 magnification with interchangeable masks. It *almost* covers the 65mm FOV.

Apart from some backing paper and development issues everything seems to work. Not an everyday camera but I like the look of medium format. The Topcor is not bad at all for a 6x9 lens with movements.


DSCF7402 by Olivier, on Flickr


DSCF7499 by Olivier, on Flickr


SIM00414-1 by Olivier, on Flickr

 

[Austintatious]

Looks very nice. Excellent work. What a fun camera😀

 

[charjohncarter]

Very nice, post some more images.

 

[OlivierAOP]

Thanks both. I'll update after I've used it a bit more. At 6 shots per roll it's hard to get keepers!

 

[OlivierAOP]

Tested the 65mm and 135mm. Poor photos but it seems to work. Swapped lenses mid-roll in a darkroom. All hand-held at f/22-32, 1/125, ISO 400. 135mm shots were likely out of focus, I'll have to check the calibration.

L to R: 90mm, 65mm, 125mm

DSCF7507 by Olivier, on Flickr


135mm

SIM00449-1 by Olivier, on Flickr


65mm

SIM00452-1 by Olivier, on Flickr


Edit. Figured out where I messed up the focus scale on the 135mm lens. Also tentatively fixed the lateral vignetting when using that lens.