i have almost finished my prototype L-plate for the Sony, expect to have it just about ready tomorrow.
what it will offer:
1. access to battery compartment
2. arca style grooves on base and end for landscape and portrait use with index lines for lens center
3. opening in L-plate end so the hatch doors are un-obstructed
4. captive screw, allen key style
5. as much articulation of LCD retained as possible (some reduction in the face-down position only)
6. black anodized and finely machined
a few things i could still add and could use feedback on:
a pin for using a wrist strap?
a thin "cushion" between the camera base and the plate (sort of a shock dampener)?
so far the design could let the entire base slide toward the L-plate to allow cords to clear if the camera is actually mounted on the L-plate. i don't really like this, but want your feedback.
a few points for discussion:
with an L-plate, accessing the ports is a PIA on all these cameras. typically the user wants to operate the remote shutter release plugged into the micro-usb port, but the connector interferes not so much with the L-plate, but with the actual arca clamp plate in portrait mode. with the wifi and app, you can run the remote with your smartphone; seems like a better solution than hard wiring?
there have been a few remarks about the benefit of weight to try and control vibration, but typically users want these things light. comments?