I have a few 2" TV diagonals from the past which were around before the brass compression rings were the norm. One is an Everbrite, the other is an Enhanced 2" diagonal, both are excellent diagonals.
I thought about just selling them both, and buying a more modern TV Everbrite with the brass compression ring.
Then I thought, why dont I just remove the set screw, then drill and tap at least one more hole in the diagonals, then use nylon screws instead of chrome set screws. I havent checked the size of the current set screw, but maybe its got 8/32nd threads, or even 10/32nd threads. The larger diameter the better.
Ive done this numerous times, with many parts requiring a set screw, basically just modernizering them with Nylon screws to prevent scratches.
Has anyone ever tried this with a quality 2" diagonal like these Televue diagonals I have, which just uses set screws?
I dont care for these older set screw diagonals because I dont want my 100 deg eyepieces scratched up.
Thanks in advanced for any comments.