ASKAR

 65PHQ is a flatfield astrograph newly launched after 80PHQ, 107PHQ, and 130PHQ. Instead of buying extra flatteners, calculating the back focus of the flattener, or making a tedious connection to match the correct distance, astrophotographers can simply equip it with any possible imaging ac..

Askar’ s new-launched 65PHQ 0.75× full-frame reducer has a quadruplet design. The 0.75× reduction gives 65PHQ a shortened focal ratio of f/4.8 and a shortened focal length of 312mm. This reducer, connected with the astrograph, can effectively shorten the exposure time and dramatically increase your ..

Parameter  （After attaching）71F Focal length 369mm  （After attaching）71F Focal ratio f/5.2 Lens Number Triplet design Back Focus 55mm（from the bas..

 Askar introduces the brand-new 80PHQ refractive astrograph. And it’s the second long-focal-ratio astrograph from the PHQ- family. The overall finish of 80PHQ is evenly painted. The ivory and flawless coating of the main tube feels comfortably pimply, which can not only increas..

The Askar new 3 inch 0.76x full frame reducer,with a triplet design and specifically for the 80PHQ, offers a 0.76x reduction in focal ratio, when used with the ..

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Parameters Aperture size 91mm Focal length 609mm Focal ratio f/6.7 Objective lens Quadruplet air-spaced APO(including one ED glass) Image circle 44mm Maximum accessory ..

Aperture size 50mm Focal length 190mm  Focal ratio f/3.8 Objective lens Quadruplet petzval APO（including one piece of SD glass） Total length ..

The Askar 3 inch F3.9 full frame reducer features 4 elements optical design specifically for the FRA600, offers a 0.7X reduction in focal ratio, when used with the FRA600 astrograph, this reducer effectively shortens the exposure time, its focal length is reduced to 420MM, dramatically increases you..