2 90 Deg Dielectric Mirror Diagonal for Telescope with 1.25 Adapter

About this item

• Dielectric diagonal is especially important;A standard aluminized diagonal has about 92% reflectance;And this decreases with time as the aluminum mirror surface ages
• Excellent Quality Dielectric Diagonal; Mirror Star Diagonal - 99% Reflectivity；Provides a Comfortable 90 Degree View from your Refractor; Fits Standard 2" (50.8 mm) Diameter Focus Tubes; Use Both 2" (50.8 mm) and 1.25" (31.75 mm) Eyepieces
• Brand new 2" 90 degree dielectric mirror diagonal for telescopes with 1.25" adapter, made of full metal construction. Features 1/10th wave flat optical glass surface and solid aluminum housing. Compatible with standard 2" filters thanks to threaded design. Equipped with non-marring brass compression rings in both the 2" eyepiece holder and the 1.25" adapter.
• For the vast majority of the visible spectrum;the reflectance does not vary more than about 0.1% below 100%;And the dielectric surface does not age like aluminum;This combination leads to the equivalent of a little more light grasp compared to standard diagonals
• Both sizes of eyepieces may be used and are protected from dings and scratches that would result from a standard set-screw. This 2" diagonal works with any Refractor that accepts a 2" star diagonals. It can also be used with Schmidt-Cassegrain or Maksutov-Cassegrain with an optional 2 inch visual back (See below)