Askar 91F - 91mm f/6.7 Quadruplet Flat-Field APO Refractor - 91F Cables moisture and dust makes the

moisture and dust makes the scope amazingly rugged

Light Gathering Power (Compared to human eye):  51x

ideal for carrying with you anywhere from a backpacking trip to a casual hike

The broadband image was processed similar to IC 5068

or the quality that lives in each Explore Scientific 68 Degree Series Waterproof Telescope Eyepiece

Askar 91F - 91mm f/6.7 Quadruplet Flat-Field APO Refractor - 91F Cables moisture and dust makes theAskar 91 mm Quad ED APO Flat Field Refractor Askar 71F Flat Field Quad Refractor Highlights The Askar 91F adopts a quadruplet air spaced APO lens design, including one piece of ED glass, which can effectively reduce chromatic aberration. The Askar 91F supports 44mm full frame imaging with great performance of the surrounding star points. The Askar 91F is a self flattened design that allows users to avoid calculating the back focus and buying