Celestron 2" Twist-Lock Dielectric Star Diagonal for Refractors & SCTs

Not only does this provide ultra sharp visuals, but also the twist lock makes changing lenses so much easier. Always check they are locked in however. I have never had one fall out but I am paranoid!

Wonderful!!! It looks and feels great. It prforms beautifully and compliments the rest of my anodized orange upgrades with my Celestron AVX Mount.

I do not have an expensive telescope (a 5" Maksutov) but the telescope glass is pretty good. The problem is the 5" aperture which only allows so much light to come in. This means the optics attached to the telescope need to be as high quality as you can afford so you can get all the light possible to the eyepiece. For this I purchased Celestron's dielectric star diagonal because it is much better than the original cheap diaganol. It is easy to work with, too, because of the special twist lock it has which lets me change eyepieces easily and safely. I'm surprised more amateur astronomers don't start with buying a better diagonal like this one. When I upgrade my telescope the Celestron Star Diaganol can work with the new scope too.

Optics seem excellent. I also love the locking style 2 inch and 1.25 adapter. One thing I think could be improved is that when screwing it on to the back of the OTA there is a very fine line between having it loose so that the diagonal is not secure and having it so tight that it is very hard to get off. This purchase actually caused me to go buy a set of strap wrenches for this issue. Of course the strap wrenches work fine but it is still a bit odd to me how easy it is to over or under tighten.

New telescope user here, so not much to compare to, but this is super easy to use and loves up to the reviews I’ve read online.

Great quality and a nice improvement over the stock one that came with my telescope. Fit perfectly into a celestron 6se.

Love the jump from the stock 1.25" diagonal to this monster! Even better when adding 2" eyepieces, but so cool that I can use my 1.25" EPs as well. Love the twist lock feature. Makes it very simple to swap EPs, and they are held confidently in place. Totally worth it!

Excellent item ,fast shipping.

A must have of you own 1.25 and 2 inch eyepieces

Besides being built like a tank, excellent quality and clearly a difference in light transmission. A MUST have. Expensive, but raises the bar for visual astronomy.

天頂ミラーの方向を簡単に変更できるよう、C8 にbaader の2インチClicklockアダプターを付けて使用。天頂ミラースリーブに2インチフィルターを付けられるので、付属の1.25インチアダプター使用時に別途フィルターを用意する必要がない。光学性能は特に問題なし。

Product was as expected and delivered very promptly. Would highly recommend.

Gekauft dan günstigem Preis von Amazon US. Leider nicht zum Betrieb mit Reducer und Spiegelreflex geeignet, der Lichtweg ist zu lang. Ohne Reducer funktioniert es.