search results

  1. Askar 107PHQ Telescope High Performance Long Focus Ratio Flat Field Telescope

    107PHQ adopts a quadruplet optical lens combination with a focal ratio of 7, with two of them being ED glass. Both beginners and experienced enthusiasts can easily use it. - ASKAR 107PHQ is a truly versatile player.

    eBay

  2. Askar 60F Astronomical Telescope Deep Space Professional 60apo

    The Askar 60F is an OTA with an aperture of 60 mm, a focal length of 408mm, and a native focal ratio of F6.8, designed for astronomy enthusiasts who prioritize portability and high image quality. The Askar 60F OTA weighs only 2.5kg, and the gross weight is 3kg (including the tube rings and dovetail plate).

    eBay

  3. New ASKAR SQA55 astronomical telescope professional deep space

    Sandwall & ARK | M20+M8 | ASKAR SQA55 + ZWO ASI 2600MC Pro. Drew Evans | THE GREAT RHO OPHIUCHI CLOUD COMPLEX | ASKAR SQA55 + ZWO ASI2600MC DUO · ZWO ASI2600MM Pro. sandwall | Veil Nebula | ASKAR SQA55 + ZWO ASI 2600MC Pro.

    eBay

  4. Askar 80PHQ f/7.5 Quadruplet air-spaced APO Flat-Field Astro Telescope

    At the first glance, 80PHQ is much more compact. 80PHQ is 450mm in length and gross weight 4.7kg. Thus its focal ratio is f/7.5. So 80PHQ is a compact halfway house. And those short-focal-ratio astrographs consistently suffer a lot from chromatic or spherical aberrations.

    eBay

  5. New ASKAR SQA55 astronomical telescope professional deep space

    Askar SQA55 -- Quintuplet air-spaced SD glass Petzval astrograph. Askar SQA55 Specifications Mr.ZhuLiQun | NGC7000 | ASKAR SQA55 + ZWO ASI 6200. sandwall & ARK | M20+M8 | ASKAR SQA55 + ZWO ASI 2600MC Pro.

    eBay

  1. Previous Page (Page 2)Next Page (Page 4)