I have a Pentax 20XW eyepiece to use in my Pentax PF-80ED-A scope; am wanting to use my P5100 Nikon with it as well as my Nikon CP-8400, and need to know the thread size of the Pentax XW eyepiece so I can either search for adapters- or try to make one. Or are there any commercial adaptors for this combo??? Thanks!
Wes
Wes