It appears to be a very well made piece of kit that does what it supposed to do. It has a quality feel to it which instills confidence in use. For the cost it would be hard to beat.
This has got to be one of the best diagonals out there at any price. I bought it to use with my 12 LX90 Schmidt Cassegrain and it's a Great piece of workmanship. I star tested my scope with it and was supprised at my scope and this diadonal, as I had perfect star diffraction patterns at 476x. Also the images are clear and bright with no edge blur, the diagonal is very, very well made with excellent fit and finish and as for the price, I think you would really have a hard time finding better quality at any price, but for $89.95, It's unheard of. I could go on and on and might as werll say a little more, I've had diagonals with the brass inserts that was so hard to get the eyepieces in and out I just wanted to throw them away, well this diagonal lets them slide in and out as smooth as glass. Ok, bottom line, if you want a really nice diagonal at a GREAT price this is it. Smallscope PS. You will also have a hard time finding any nicer folks to buy your astro equipment from than OPT, there're nice folks and there're shipping department is faster than anyplace I've used.
During my transition to 2” eyepieces with my Celestron C11 SCT (F/10 I wanted a good quality, 2” diagonal with high reflectivity that didn’t cost me an arm and a leg. This diagonal fit those criteria perfectly. It has a high quality feel to it and my views were clearly improved over my existing 1.25” Celestron diagonal. I would highly recommend this diagonal to anyone. Note: If you’re an 10” or larger SCT owner and using long focal length eyepieces, make sure you don’t have standard 1.5” SCT threads anywhere in your light path as it will not allow the full light cone through to your eyepiece. I’m using this OPT diagonal in my SCT with a visual back adapter that accepts 2” accessories. (Astro-Physics sell 3.25”-to-2” adapters for Meade and Celestron scopes Clear Skies…
I own have owned a few 2 diagonals over the years including Tele Vue and AP diagonals. I picked this diagonal up, as the price was right and I had heard good things about it. Optically it is every bit as good as the best diagonals and mechanically is just a step below, but still well made. This is a wonderful diagonal for under $100.
Pleasantly surprised by the above average quality for the price of this diagonal.