I will make a drawing and post them, problem is that each one would be custom for the scope you use and the video camera you choose. Basically there is a mirror behind the scope eyepiece that is at about 45 degrees and passes about 40% of the light through, the other 60% goes to the camera. You loose about 2 inches of eye relief, so either you need a long eye relief scope or a low recoil rifle. As you can see it is hard to hold sight picture even with a 17 remington, so those who say they can hold sight picture with the 22's are cleary mistaken. If you look closely the range marker is a mirror image, and the cup of coffee was to the left of the target. Larry
