Thanks Allan. Yeah that all makes sense. I was using the formula of the AP website to calculate the distances. The reducers FL-distance to sensor/reducers FL, so (305-D)/305. My understanding was that 101mm is the optimum measurement, to give a .67x reduction, but the greater the distance, the greater the reduction? Or did I understand that wrong
I am am planning on using the reducer in front of my ONAG. So I need to get some adapters and threads and things, because everything is a different thread of coarse
but I'll be able to make it 101mm pretty easily I think.....
So by your picture, I'm guessing the camera goes on the end of your extensions?
Erik