Hello everyone, we have launched our new telescope Askar 71F.
The 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 is versatile and can be used for both visual observation and astrophotography.
The Askar 71F adopts a quadruplet air-spaced APO lens design, including one piece of ED glass. The Askar 71F supports 44mm full-frame imaging.
The Askar 71F is a self-flattened design that allows to avoid calculating the backfocus, after attaching the imaging accessories, users can directly use it for shooting after the OTA is in focus. (The maximum accessory connection from the base of M48×0.75 male thread is 82.5mm).
The Askar 71F OTA weighs only 2.5kg and the gross weight is 3kg (including the tube rings and dovetail plate).
The Askar 71F comes with three accessories: a 25x 8mm eyepiece, a 60x 20mm eyepiece, and a 1.25-inch erecting prism.
The Askar 71F also comes standard with a photographic extension tube, which includes M48*0.75&M54*0.75 adapters, it also contains a built-in 2-inch filter thread for easy shooting connections.
The dew shield of the Askar 71F is a retractable design, further shortening the overall length and increasing portability. The entire lens tube of Askar 71F is crafted using high-quality CNC machining. All the inner of the Askar 71F's dew shield is covered with matting paint to effectively reduce stray light reflections.
On the handle bar of Askar 71F, it designs a finder base slot. Besides, there are two finder bases on both sides of the focuser, which not only eliminates the need for disassembling when changing the position of the finder scope but also provides additional mounting positions for other astronomical accessories.
In terms of the focuser, the Askar 71F is equipped with a dual-speed R&P 2.4-inch rigid focuser, which has a 1:10 fine adjustment and a 360° scale field rotator at the rear end for precise angle adjustment.
The Askar 71F's dovetail plate is a 230mm standard Vixen dovetail plate, which slotted 1/4 screw holes as well as 3/8 screw holes for direct tripod attachment.
Click here for more information:
https://www.sharpsta...ucts_1/101.html
