Kodak Retina 3c
This
is a Kodak Retina 3c camera, the front and rear lens are removed.
A
brass adaptor ring is machine turned and it works as
an extension ring as well. The zone plate is stick on the
brass ring.
The
brass ring fits into the camera with it's "spring" mount,
neither
screw mount nor bayonet mount. It can be removed easily.
The
front door of the camera can be closed without removing the brass
ring.
Focal
length of this zone plate camera is 65mm,
with
7 clear zones and f-stop is f64.9.
|