I had wanted to do that for a long time, but never seem to find the time these days, so here is just a fast and dirty version of a comparison of several fast 25mm c-mount lenses. Here are the contenders, all 25mm,
Angenieux M1 0.95
Angenieux Bell & Howell 0.95
Canon TV-16 1.4
Kern Switar RX 1.4
Wollensak Velostigmat 1.5
Cooke Kinic 1.5
Kodak Ektar 1.4
I was mostly looking for the vignetting, so the motive isn't really exciting. The picture in the background gives you a slight idea how the lens handles OOF parts, the focus is on Elvis' eyes, all at ISO 200. I wanted to do it inside to challenge the lenses a bit, daylight from a window on the left. I selected 3 shots for each camera, one at 4:3 fully open, one at 16:9 fully open, and one at 16:9 at f5.6. Pictures are pretty much jpgs straight from the camera, no cropping, just a minimal bit of sharpening after resizing them.
A few general remarks:
- some lenses are more difficult to focus than others. The focus ring of the Angenieux is very close to the adapter and they are difficult to focus with my big fingers.
- the Wollensak should probably have been cleaned better before the shoot...
- The Wollensak and the Zeika were the most difficult to get sharp, may have to do with the camera sitting at the edge of the minimal distance for those lenses, but that is only speculation.
- From a handling perspective, I like the Canon and the Kodak the best. Not too small, easy to reach aperture and focus rings.
So, here are the shots in the sequence listed above, I am only showing the 16:9 format for now. If you see vignetting there, it will be worse at 4:3...
Starting with the fully open shots, then at f5.6 for each lens: