Askar 65PHQ f/6.4 Quintuplet Air Spaced Astrograph - 65PHQ type-binocular-accessories Field Stop: 6

Field Stop: 6

For these large chips an optional field corrector was developed so the corners of the newly brightened edges would virtually be as perfect as the center of the field

25" - Kellner Eyepiece With Reticle And Illuminator is a suitable eyepiece for doing manual guiding with a guide telescope

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

low-aberration images

Askar 65PHQ f/6.4 Quintuplet Air Spaced Astrograph - 65PHQ type-binocular-accessories Field Stop: 6Askar 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