Svbony 2'' 90 Degrees Dielectric Mirror Diagonal with 1.25" Adapter

Delivery: Ships from Svbony warehouse located in Hong Kong. The estimated delivery time is 10 business days. 30 days returns policy. Returns location: Rancho Cordova, California, United States.   Features:  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 New 2" 90 deg 99% Dielectric Mirror Diagonal for Telescope With 1.25" adapter; full metal;has a 1/10th wave flat optical glass surface;solid aluminum housing;threaded to accept standard 2" filters;The 2" eyepiece holder uses a non-marring brass compression ring to secure your valuable eyepieces. The 1.25" adapter also has a non-marring brass compression ring 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) Dielectric diagonal is especially important;A standard aluminized diagonal has about 92% reflectance;And this decreases with time as the aluminum mirror surface ages 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   Description Internal Brass Ring Internal brass ring that the set screw hits to hold your eyepiece inside for eliminates marks on your eyepiece barrel, can secure your valuable eyepieces   All Metal Structure SVBONY diagonal mirror are made of metal, hard and durable without worrying about damage during use   Light weight SVBONY diagonal mirror weighs only 529g, that won't add excessive weight or bulk to your telescope   Use Both 2" (50.8 mm) and 1.25" (31.75 mm) Eyepieces SVBONY diagonal mirror can Use Both 2" (50.8 mm) and 1.25" (31.75 mm) Eyepieces,can meet your different needs   California Residents: Please check Proposition 65 Warning Website about significant exposures to chemicals that cause cancer, birth defects or other reproductive harm. https://www.p65warnings.ca.gov/   Specifications High glossy finish appearance Threads fit standard 1.25'' and 2'' filters Excellent Quality 99% Dielectric Diagonal Mirror Fits Standard 2" (50.8 mm) Diameter Focus Tubes Can Use Both 2" and 1.25" Eyepieces Non-marring brass compression ring  Material: Metal Net Weight: 529g/18.67oz   What's included 1 x 2" 90-deg Dielectric Mirror Diagonal1 x 1.25" Dust Cover1 x 2" Dust Cover2 x screws