Gyogan Bronica

Kyu-hachi TABATA’s self made sky-camera,
made out of a 16mm KMZ Zenitar f/2.8 fisheye, a central shutter, and a 6×6 Zenza Bronica back.
It’s a beautiful piece of workmanship and a very inspiring project for me too. He states the lens projects a 45mm circle requiring a 6×6 back to be captured entirely.

“The lens is an MC Zenitar Fish-eye 16mm F2.8  This lens is a diagonal fish-eye.  So, I thought if the film size expanded to 6×6, the photo frame also expanded to full-circular fish-eye. 
The lens mount of Zenitar is M42, so, simple screw mount.  Then I made a very thin inter-ring to adapt M42 on one side and a Large format camera mount in other side.”

Kyu-Hachi TABATA’s self made sky-camera

shutter:
Large format camera (Copal No, 1)

size and weight:
(only body) w104mm x h105mm x d130mm    308g
(zenitar lens) 288g
(120 film back) 388g
(total) 984g

links

The camera page:
http://kyu-hachi.sakura.ne.jp/Photo/Pc-GBronica.htm

The making of:
http://kyu-hachi.sakura.ne.jp/Photo/Ph-GBronica.htm