I would like to use my 1dm4 in portrait orientation on a monopod using the 135 f/2, which of course doesn't have a collar.
Really Right Stuff offers an L-Plate, but I can't make out if it has just a screw-in hole on the side so I can simply screw in my monopod directly.
Kirk offers a plate that seems to requires a quick release plate for portrait orientation.
Anyone have one of these to verify?


