Telescope-Refracting Telescopes-Askar 71F Flat-Field Refractor

No Extra Corrective Lenses Required
With a quadruplet air-spaced APO optical arrangement, the Askar 71F Flat-Field Refractor provides a flat, apochromatic, image directly to your camera. With no external field flattener to purchase, attach, and then detach for visual use, this scope saves you both time and money! This design also ditches exacting backfocus requirements and calculations – just space your camera out enough to reach focus to enjoy maximum optical performance. Askar has packed all of these great optical features into a design that covers 44 mm, meaning you’ll get excellent images with even full-frame gear!

Visual and Imaging Adapters Included
This scope has been designed to be used whichever time of day you’re out! With the M64-M54, M54-M54, and M54-M48 adapters, attaching T-Rings or astronomy camera spacers is a breeze; and with 2″ filter threads integrated in the M54-M48 adapter so is adding an imaging filter to your setup. For visual use these can easily be swapped with the M64 to 2″ visual back and 2″ to 1.25″ adapter. An 1.25″ erecting prism diagonal has been included to provide right-side-up images for observing far away objects and animals during the day, which can be viewed at either 25x or 60x with the included 8 mm and 20 mm 1.25″ eyepieces.

Electronic Focuser Ready
The dual-speed 2.4″ rack and pinion focuser featured on this scope provides a solid platform for everything from the light-weight eyepieces to complex imaging trains full of accessories. For those looking to build a more dedicated astrophotography setup, Askar has delivered with out-of-the-box compatibility for electronic focusers! With confirmed compatibility for not just ZWO’s excellent EAF, but also a wide range of other bracket-style electronic focusers, the 71F Flat-Field refractor allows you to confidently pair this with your user supplied automated focusing solution of choice.

Excellent Extras
It doesn’t stop with quality optics, a solid focuser, and all the adapters you need, as Askar has packed in a number of other accessories that push the value of this refractor even further! First is the multi-function handle, which has been slotted for Synta-style accessories such as guidescopes and WiFi camera control options like ZWO’s ASIAIR series. Combined this with the two finder bases, and you’re left with ample mounting options and space for a plethora of gear! For astrophotographers, Askar has included a 360-degree camera rotator that will allow you to frame up targets any orientation you please! Finally, supporting the 71F is a 230 mm Vixen dovetail (black), which sports both 1/4″ and 3/8″ threaded connection points that make as at-home on tripod as it is in a astronomy mount saddle!