Hey Folks!
For those that are still looking for a compatible tripod foot for their Pentax Adapter Q to K Mount (or DA*60-250, or DA*300), looky what I received from Hong Kong today:
Yes, that's a functional "Pentax-style" clamp on the back. Fits my DA*60-250 perfectly (actually has less wiggle than the OEM foot) and the plate is longer and arca-swiss compatible as well.
The upright clamp is attached to a universal lens plate (which comes in different lengths, this one is 100mm or ~4") by 4 screws, meaning it can be reversed if you don't like where the (prototype) knob is. Also, that upright clamp tower has a 1/4" thread on the bottom as well, so it can be taken off the arca-plate and attached to different types of quick-release plates (Manfrotto RC series or other proprietary types) or possibly even an L-bracket!
One interesting departure from the Pentax design is where the knob is in relation to the moving "wedge" part. In the Pentax design, you turn the knob and it "pushes" the wedge inward toward the mount, but in this design, turning the knob "pulls" the wedge from the opposite side, giving a stronger clamp action!
Again, this is just an aluminum and brass CNC prototype, so I can't say where to order them or how much they are... but it seems this manufacturer of camera support gear is serious about supporting Pentax's weird tripod foot design!
Last edited by panoguy; 03-13-2013 at 07:18 PM.