Askar 71F Flat-Field Refractor Telescope and Spotting Scope | ASKAR-71F

Askar 71F Flat-Field Refractor Telescope and Spotting Scope | ASKAR-71FThe Askar 71F is an OTA with an aperture of 71mm, a focal length of 490mm, and a native focal ratio of F6. 9. The Askar 71F adopts a quadruplet air spaced APO lens design, including one piece of ED glass which can effectively reduce chromatic aberration. The Askar 71F supports 44mm full frame imaging with great performance of the surrounding star points. The Askar 71F is a self flattened design that allows users to avoid calculating the back focus and

Since human eyes are less sensitive at night

Our application of advanced optical coating technology and double-sided precision polishing achieves both consistent parfocal and optical performance across all filters

In the picture below

Lightweight & rugged with audio

XD Lenses to Deliver Crisp Images and True Color

he graduated with a degree in astrophysics from Saint Mary’s University and was presented with an RASC award for Excellence in Science Communication

the autoguider dramatically simplifies the polar alignment process

MANUFACTURER Baader Planetarium SKU (#) 2456120 EAN CODE 4047825027856 NET WEIGHT (KG) 0

QHY533M + QHYCFW3S-SR combination can be easily connected to a DSLR lens

thus effectively enhancing the contrast and details of the celestial bodies

even if the guiding cable is lost or damaged

high-transmission sputtered coating