[danmdan]

I was thinking of using APS-C marked TV lenses, (like the one illustrated above), which I understand have enough coverage for many of the smaller digital sensors - especially the one in my Pentax Q7, and probably the one in my Fuji X-E1.

Anyway I will experiment and report back - so far my only C-mount lens, the above 35 mm f/1.6, seems to be OK on my X-E1 body, and thus should be OK on the Q7.