The a7R is not compatible with the Nikon 24mm f/3.5 ED PC-E Nikkor with any adapter that I’ve tried. The “E” in the name stands for electronic diaphragm, and I know of no adapter that supports it. If there aren’t any adapters that support the lens, that’s too bad, because the PC Nikkors seem otherwise… [Read More]
Archives for December 29, 2013
A sharpness testing strategy
When I last discussed sharpness testing, it was in the context of shutter slap. Before, I’d been working on generalized sharpness testing, in which many sharpness-damaging effects — camera motion, diffraction, lens quality, flatness of field, adapter alignment, etc. — were given the opportunity to create the final result. While I’d like to be able… [Read More]