The Lumicon 80mm Right Angle Aluminum Super Finder scope. Focal Length 300mm Focal Ratio f 3.75. This is an excellent small finderscope, telescope and spotting scope. It takes 1.25 interchangeable eyepieces. It is made of aluminum. It utilize a fully anti-reflection coated achromatic objective lens. Also has 1/4-20 tripod mounting flange. Also included is a 90 Amici prism star diagonal with correct image. Also included is a 1.25 KE 25mm wide angle fully coated eyepiece with a rubber eye boot this makes it a 12X80mm (12 power) I used this Lumicon superfinder on a 18" Obsession telescope. It did a great job, a lot of light gather for a finder scope. The amici worked great the maps matched the finderscope. I sold the 18" Obsession last year and now it's time to sell the superfinder. I have over $280,00 in this setup. I'm asking $150.00 with free shipping and insurance inside 50 states.