"Diffraction Limited" means that the limits of image detail are determined by the physical properties of light, and not by optical defects in the telescope.
Instead of a single thumb screw locking the eyepiece in place, a brass ring compressed by a thumb screw secures the eyepiece. This spreads clamping force over a larger area of the eyepiece's barrel, which provides a better connection. The compression ring also prevents the tip of the thumb screw from producing unsightly scratches and divots on the eyepiece barrel.
2"-1.25" adapter
Included
Weight (oz.)
19.07
Warranty
One year
Included Items:
7/23/08 5:39 PM
2" Orion Correct-Image Prism Diagonal
Reviewer: M. Gimmey
Excellent build quality, fit and finish.
Diagonal exceeded my expectations.
6/22/08 9:19 PM
2" Orion Correct-Image Prism Diagonal
Reviewer: D. Duchmann
Some people must just be unlucky based
on (a previous) reviewer's experience.
I had no such problem. In fact, this
diagonal is superb. Rarely do you get a
Correct-Image Prism diagonal in a 90
degree form. It also comes with a 1.25"
adapter. Both pieces look great and
reflect Orion's fine workmanship. I have
absolutely no complaints and saved BIG
on (a) sale price!
3/1/08 5:33 PM
2" Orion Correct-Image Prism Diagonal
Reviewer: Richard Maley
Today was the first time I have used
this diagonal. It fell apart. ...
The part of the diagonal that
accepts the eyepiece fell off. Looking
at the corpse, I see that the eyepiece
connector section is not secured in
place with screws but rather pressure
fittings. This is a very dangerous
design. Beyond the poor design. The
price is too high and the shipping costs
are criminal. This is a rip OFF!!
(Note from Orion: The eyepiece holder
portion of this diagonal is held on by four
internal setscrews.)