Quote:
|
0.965" eyepieces were the standard in that era up until around 1980 when 1.25" very quickly became common.
|
Possibly a standard on more expensive telescopes but my Tasco 17TR was new in 1990 and still had the smaller eyepiece. Common on what were referred to as department store telescopes, mine came from a camera store and in the scheme of things was far from cheap.
I'll have to have a look through a tub I have, I may still have some smaller eyepieces but they were never good. My younger sister was travelling across Aus in an RV and I gave her a 70mm refractor with an alt/az mount and the better quality eyepieces I'd purchased for when she got out in the dark, her and her husband liked the night sky. I quickly swapped the focuser off the Tasco over to the smaller scope because it was firmer (and modified to remove slop) and fit a WO unit on an adaptor on my 80mm Tasco.