Askar 160 mm f/7 Triplet APO Refractor - 160APO Computerized Telescopes By strategically blocking these “bad”

By strategically blocking these “bad” wavelengths

a sturdy machined Vixen style dovetail bar for easy mount attachment

Minimum Focusing Distance:  9

and that fact goes a long way towards explaining why someone might want to spend more money

larger pixel size and better NIR (near infrared) sensitivity

Askar 160 mm f/7 Triplet APO Refractor - 160APO Computerized Telescopes By strategically blocking these “bad”The Askar APO160 is a large aperture (160 mm, or 6. 29") f 7 triplet APO refractor with one ED element to boost contrast and sharpness even further! A quality large aperture refractor can reach a limiting magnitude of 12. 79, an ability that pulls in fainter objects than an instrument of lesser aperture. For instance, a 160 mm telescope has 30% more aperture area than a 140 mm, and that really makes a difference in detail discernment and imaging