I drill the camera and fishing hole as usual for inside the shelter then drill another hole IN DIRECT LINE outside the shelter 6 - 12 ft away on the FISHING HOLE side depending on the water clarity. That is my "marker" hole. My marker is a length of tip-up line with a heavy sinker tied to the end and a white piece of vinyl, plastic, or whatever tied 1 ft and another one 2 ft up from the sinker. Tie the other end to a piece of wood for wrapping. Lower the sinker until it just touches bottom then lay the wood across the hole. You can then turn the camera by either method in the above posts and hold it on the target. Dropping the lure will always come between the camera and markers. I've done this for a lot of years and the markers seem to have no effect on fish. Bluegills sometimes seem attracted by them toward me. After an hour or so the camera drift usually stops. My markers are for bottom fishing but you can modify them. It only requires one extra hole for this method. Just keep the holes reasonably in line.