the other night brought out my XLT 102 refractor and had some fun. as its cold i tend to just pop an eyepiece in and use it for the night. I wanted to get some more time behind a 2" 5mm Hyperion. this was perhaps a bit too much magnification for the seeing, but only JUST, but thats not my question..
I noticed I had to take off my glasses and pretty much push my eye against the (already folded down) eyecup. I picked this EP up used when i saw it as I'd heard here they have long eye relief. I just looked it up and this 5MM EP is supposed to be 20mm. all of the other "long eye relief" eyepieces I have bought can be used with glasses. I looked up my Astro Tech Paradigm 12mm 1.25" and that one has 13mm. I just tested it again and I can see the full outer rim with glasses on. Then I tried the hyperion with its 1.25" adapter attached and sure enough the eye relief is better. I am not outside to verify but im sure the FOV is smaller too, but thats not my question either
is there any way I can get that 20mm of eye relief with this 2" EP? I want to get a nice wide field 2" EP at some point and am wondering if Ill run into the same thing. Just looked at their 31mm and the eye relief is a shorter 18mm. The ES 82º has 21mm eye relief. im totally confused why im not getting the eye relief i wanted.
I looked up the specs of it and i dont quite understand all of the adapters and threading options for it. mine didnt come with a manual.
im including a pic with it attached as a 2" to my diagonal just in case theres something im missng that a picture will show.