ASKAR 80PHQ APO QUADRUPLET f/7.5 OSC filter the Flat68III should be set

the Flat68III should be set to 5mm for the Fluorostar 91

5kg payload capacity and an incredible resolution of 0

75 Optical thickness 10 mm SKU QHY-020108

Firmware download

Especially during sand storms which can encircle the entire planet and covering features

ASKAR 80PHQ APO QUADRUPLET f/7.5 OSC filter the Flat68III should be setThe Askar 80PHQ is a professional apochromatic flatfield Petzval quadruplet with a focal ratio of f 7. 5 and a corrected field of 44mm in diameter. The Askar 80PHQ includes two Extra Low Dispersion glass elements for superb correction of chromatic aberration. Differently from standard ED refractors, the Askar 80PHQ features a Petzval design that does not require to set the sensor to a specific distance to the last lens. That leaves the freedom to use