The Askar SQA55 is a multi-purpose Petzval refractor featuring 5 elements for superior correction! This telescope features a trick up its sleeve not found on many other refractors: a variable aperture. With an aperture ranging from f/4.8 to f/22, you can use the Askar SQA55 for astrophotography at night as well as daytime photography as a manual focus camera lens.
80PHQ inherits the optical design of the PHQ family, adopting a 3+1 quadruplet lens structure which contains two pieces of ED glass that can effectively reduce chromatic aberration and enhance clarity and sharpness. It’s worth mentioning that all astrographs from the PHQ family come with an integrated lens combination rather than simply placing three major lenses and a corrector together in a line. In other words, the whole optical system cannot solely perform without any piece of these lenses. This structure design leads to a more rational lens arrangement, better vignette control and superior image quality. The focal ratio of 80PHQ is f/7.5. It’s a “long” focal-ratio astrograph compared with other counterparts from Askar. It’s a little bit longer even compared with 107PHQ which is f/7 in focal ratio.
กล้องดูดาว Askar V 60mm / 80mm Triplet Modular Apo Refractor Telescope
Askar V is a newly launched product concerning our customers’ needs. It comes out with a big innovation, which means it has not only two objective lens (60mm and 80mm), but also three accessories (reducer, flattener, and extender). Users can choose and adapt accessories according to their needs in focal lengths.
The Askar SQA85 is a premium quality quintuplet air-spaced SD glass Petzval Astrograph that can do something that is often claimed but rarely achieved: produce pinpoint stars to the corners on a full frame sensor.