Originally posted by csa So, which one is this, there are many Sunwayfoto products? This one is preferred over the ones that come with the Induro, Sirui, in what way?
The plate that comes with the Induro, indeed the Arca-type plate that comes with any tripod head, is a "general/all purpose" plate that could go on a camera base or equally on a small lens tripod foot. There are plates for cameras that are wider & shorter, more the shape of the base of a camera, with a raised edge that is slightly curved to conform to bottom edge of a camera below the screen. Give a few moments and I'll look up the exact Sunwayfoto plate I use on my Pentax bodies.
BTW: Several companies (Kirk in particular) make camera plates that are custom-shaped to fit precisely on particular camera bodies, Canikon and Sony, none for Pentax.
OK: The plate I use on my Pentax bodies is the "Sunwayfoto DPG-50 Universal Quick Release Plate" about $15. It fits snugly and doesn't interfere with the battery compartment lid, no rotation when turned to a vertical, and the dovetail plate is square so it will slide into the tripod head clamp in any direction. This means that the locking thumbscrew on the clamp can be oriented whichever way you find convenient - left under the camera base, right under camera base, backward protruding below the screen, or forward under the lens.