The the adapter is quiet strong, made from the same stainless steel as
the lens mounts on the cameras. I'd worry that those high quality lens
mounts aren't attached directly to the camera frame but seem to be
screwed into the plastic of the body. I don't think I'd carry anything
heavier than a A* 300mm hang off the lens mount with any regularity.
Walter Hamler wrote:
Jim, I think that the 500mm that was modified was a screw mount lens.
I know the one that I saw locally for sale is, and my big concern is
all that weight hanging on a flimsy M-42 adapter.
Walt
What am I missing here? My Pentax K500/4.5 mounts just fine on both my
K1000 film body and my K20D digital body, with no problem in focusing to
infinity. Of course, focusing is manual unless I use my F1.7x AF
Teleconverter behind the lens...
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