Askar 65PHQ f/6.4 Quintuplet Air Spaced Astrograph - 65PHQ type-binocular-accessories The glass thickness is 2

The glass thickness is 2

Computerized Mount Features

Benefits for imaging applications by amateurs and professionals using CCD formats as large as 52mm diagonal and paraboloids as fast as f/3

ensuring a good fit regardless of the configuration

Focal Length: 416 mm

Askar 65PHQ f/6.4 Quintuplet Air Spaced Astrograph - 65PHQ type-binocular-accessories The glass thickness is 2Askar 65PHQ Astrograph! Check it Out! About the 65PHQ Optics This beautiful 65 mm f 6. 4 Askar refractor sports a quintuplet optical design that includes two ED elements for amazing chromatic aberration correction and a wonderfully flat field. That's right, you do not need to add an expensive flattener to the Askar 65PHQ, it is already ready to go for full frame imaging! The optical design is air spaced and produces a 44mm image circle so you can use