I had an idea that I want to send out the manufacturers of spotting scopes. one of the hardest things about using a spotter alot is the strain it puts on your eyes. One is always closed while using the other. this gets very tiring! I could go spend a fortune on a set of quality big eyes OR...... wait for it....... can you feel the suspense in the air yet...... How about developing a eyepiece that would fit in the spotter I already have that would allow you to use both eyes! I would love an eyepiece that I could put on my Kowa Prominar TSN-884 that I could look through both eyes at the same time. They do it with night vision and range finders so how bout it?????