Focal length: 50mm
Mount: Contax rf
Aperture: F 2.8 - F 22
Min focus distance: 0.90m
Length (see*): 27mm [+ 19/25mm for the adapter]
mount is quite different. In fact it's two mounts. The inner mount has
a focussing helical, so the standard lenses don't have one. The outer
mount is for other lenses which have their own focussing device. Its
difficult to measure. I have taken the locking pin for reference.
A7 and the lens.
grip is a HorusBennu leather grip attached to a Manfrotto 200PL style
release plate, a special plate made by HorusBennu for their grips. It
allows you to use the camera, with the grip attached, on a Manfrotto
RC2 Rapid Connect Adapter.
Sample pictures: You may click
on the sample image (except closest focus) for full resolution. The
full resolution image opens in a new window, so you can keep it open
for comparison. Focus is on the
dish to the right of the big solar panel near the center of the photo.
Closest focus is 80cm from
edge of the lens, F 8. Focus on
the program wheel of the camera.
Although this is an older lens which can be found for very cheap, it's
decent. Wide open it's soft at the corners, but stopped down it's
sharp. The lens has no
close focussing capablities. It is very relatively small and
Contax rf mount adapter is difficult to find and sometimes expensive,
but Contax mount lenses are often much cheaper than their M39 versions.
This lens was a gift which came with the adapter from a friendly