A Classic Design - High Light Transmission - Sharpand Field Flat (Edge to Edge) Plus Excellent Contrast !Notice the Long Barrel - Especially Designed for Reflecting Telescopes and Dobs - Check out theUnusual Flat Crown as well - may solve both your in and out focus problems.
Vintage Optic Specialists :One of Hundreds of other Unique - Rare - AstroItems - Telescopes - Binoculars - Optical Equipment.Request posting catalog items for eBay purchase,Bundling is Available for Domestic and Export Orders."Our Scope is Worldwide"
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Note:Only One Set of Filters will fit the entire Criterion line ofTelescopes - B&L Series 6 "Drop In Filters" Qty. (6) per Setat $45.- Unique for all the B&L Criterion Series - Now eBay Posted !
Filed under: Eyepieces & Accessories