The Askar 203APO is 203mm aperture, 1421mm focal length refractor with a focal ratio of f/7. It has a 20% larger effective aperture area than the 185APO and the limiting magnitude can reach 13.3.

2024年4月23日 · I don’t question the design or the quality of the Askar/Sharpstar scopes but lack of consistent QCmakes it a bit of a crap shoot. If the QC for your particular scope is good, you have a good refractor at a very good price. I found this out with my tiny Sharpstar 50 triplet, an amazing little scope and my 140 Askar.

Boasting an 8” aperture and a focal length of over 1400 mm, this massive f/7 APO refractor provides an abundance of light gathering potential, making it the perfect scope for seasoned astrophotographers looking to revisit their favorite deep sky objects in greater detail.

The Askar Apo is equipped with a stable 3.5-inch rack and pinion focuser with speed reduction, which is compatible with most current focusing motors. The drawtube travel is 100 mm. The entire focuser is CNC-machined and has an anti-reflection coating on the inside.

The Askar 203APO is a high-quality astrograph with an eight-inch aperture. The Askar 203APO is an OTA with a 203mm aperture, a 1421mm focal length, and a native focal ratio of F7. The Askar 203APO has a 20% larger effective aperture area than the 185APO, and the limiting magnitude can reach 13.3.

The Askar 203APO has an impressive 203mm aperture, 1421mm focal length, and a native focal ratio of F7. ETA November 2024. The triplet air-spaced optics include an ED glass lens to correct chromatic aberration. With a 20% larger effective aperture area than the 185APO, the limiting magnitude can reach 13.3.

The Askar 203APO, the largest in its series, is a triplet refractor apochromatic optical tube assembly featuring a massive 203mm aperture, 1421mm focal length, and a native focal ratio of f/7.

The Askar 203APO adopts a triplet air-spaced APO lens design, including one piece of ED glass. The Askar 203APO is an OTA with a 203mm aperture, a 1421mm focal length, and a native focal ratio of F7.

The Askar 203APO is an OTA with a 203mm aperture, a 1421mm focal length, and a native focal ratio of F7. The Askar 203APO has a 20% larger effective aperture area than the 185APO, and the limiting magnitude can reach 13.3.

The Askar 203APO is an apochromatic air-spaced triplet refractor that offers high performance for a low price compared to other large 8" triplets on the market. The objective lens features an element of extra-low dispersion glass (ED) that minimizes chromatic aberration.