I bought this for a LOMO 150 Mak-Cass. Optically, I have found no flaws. The images it throws up are superb. I wish it had two thumbscrews for holding my binoviewer more securely. The nosepiece fits rather tightly into my 2 Mercury back. It is a push fit. My TEC eyepiece turret does not have that problem. This diagonal is made in Asia, probably Taiwan or mainland China. You can now get 1/10 wave Asian dielectrics from other companies for a bit less. In a purchase with a Stellarvue scope its a better deal. The angle of view is narrow to the point of cutting off the edge of view in my Siebert 38mm Observatory wideangle eyepiece. I am finding this to be common in Chinese diagonals, and my 1.25 Astro Tech dielectric diagonal does the same thing with a 32mm Plossl. If you are going to use the widest FOV eyepieces, you might want something else.

From: | Created on: 10/16/2009 1:48:52 PM