For terrestrial or astronomical use, this diagonal produces a right-side-up, non-reversed image with correct daytime orientation. Fully coated prisms for superior image fidelity and maximum light throughput. Accepts 1.25" eyepieces, fits in 1.25" focusers. Not recommended for use in Newtonian reflector or Dobsonian reflector telescopes. Requires 5/8" more focus travel than typical star diagonals
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It works. Observations were crystal clear and being correct image, slewing the scope was easy since I didn't have to stop and think which way I need to slew. It is light weight so it added essentially nothing to the overall weight of my scope. Unlike the 2" prism I also own. The build looks to be very solid. Those commenting on how the eyepiece holder swivels, it doesn't if you screw it all the way down. I'm happy.
I was disappointed with the diagonal that came with the telescope. I didn't know I had to buy a different diagonal to see objects correctly. This fixed the problem and I recommend buying this diagonal. It's also easier on the neck and back!!!
Blue colored halo around many edges of high contrast. But, it remains reasonably useful for lowest power terrestrial viewing. My scope is an Orion 120 ST refractor.
Got this 45 degree for non space viewing, well made and really goes easy on the neck. At my age, that means a lot these days. Makes your telescope more useable now for days instead of only nights. It also corrects the image which is another great bonus when view birds or items of great interest. Everyone needs to get one of these. Again fast delievery Amazon.
I could not get the lens fully focused. I will give it the benefit of the doubt and say it may be my telescope, although I have not experienced these problems from similar lens.
