Well last night I bought a the FD 24mm f2 and 24mm f2.8. I'll test them both to see which is the better all round option and sell the other, I got the f2 version remarkably cheap given what they've been going for recently. I'll post up my tests once I get the lenses but it might take a month or so to get them out here.
Agreed!I always have a lens on the camera, this sensor due to being naked when the lens is off (shutter up) unlike on a DSLR when the shutter is down, is very susceptible to dust. You couldn't keep the camera body open without a cap or lens.
Must have lost that Novoflex lens cap! I'll recheck the box it came in, LOL!!I don't use lens caps much at all to be honest, never have done though the novoflex adaptors come with a rear lens cap included in the box. The adaptor (for SLR lenses at any rate) provides an inch plus long tunnel to the rear lens element. You would have to try hard to touch the element and really be trying very hard to scratch it or to ding the rear of the lens. Dust blows off and you don't have to worry about grease. You could use the rear lens cap but I hardly believe it to be necessary.
As to the "tunnel" protective effect, touching the lens is not my big concern, it's dust. I don't generally carry a can of air with me or my "rocket" blower. Maybe I should!
Looking forward to your test results. So far, I've liked the, (rented), Zeiss 35 mm lens so much that it never came off my camera in my Costa Rica trip, save for a couple of shots with the Zeiss 55mm, now my only AF native lens. So far, I have only used the 20 mm FD and the Zeiss 28mm 2.0 several times to test the adapter works orthogonally.
I am still getting used to all the buttons and have slowly become able to find them by feel.