Originally posted by clackers But that's also been the Nikon way.
Just an excuse by the rep, IMHO.
Reps just sell "stuff". Sometimes, if you're lucky, you'll get one whose actual interest in the product extends beyond their commission, but much of the time they're just paid to flog whatever pays.
Once you've done the design for the mount interface, the rest is just tweaking to suit the physical characteristics of the individual design. I agree that the aperture lever could be a bit of an issue if the enclosure doesn't have space for it, but not having to include a VR optical drive system for the Pentax mount version and the sheer size of many AF lenses makes me sceptical that it couldn't be readily worked around. However, I haven't designed any lenses, so I remain to be convinced otherwise.