ASKAR 80 mm f/7 ED Apo for astrophotography and observation

ASKAR 80 mm f/7 ED Apo for astrophotography and observation

The Askar 80ED with 80 mm aperture and 560 mm focal length offers good color correction and is ideal for mobile use.Aperture 80 mm / focal length 560 mm / focal ratio f/7

  • Improved color correction due to the use of ED glass
  • High-quality dual-speed R&P 2" focuser - optimized for astrophotography
  • Motorized focus systems, like ZWO-EAF can be adapted directly
  • M58x1 external thread on the focuser for screw adaptations
  • Correctors for astrophotography calculated for the ED available (0.7x, 0.85x and 1.0x)
  • With a weight of only 2 kg and a transport length of 40 cm, ideal for traveling
  • 2 finder shoes, CNC rings, dovetail bar, carrying handle included in the scope of delivery
Manufacturer : Sharpstar-Askar
SKU : TSO-ASED80
Price: 482.00 € incl tax 19% (Germany)
Estimated delivery time : 1-4 days (valid for new orders)
Product description

The compact and ultra-light ED refractor is an easily transportable all-round telescope for observation and astrophotography. The well corrected optics offer good correction of chromatic aberration thanks to the moderate focal ratio and the ED glass used. The high-quality mechanics and the stable 2" R&P focuser guarantee successful observations and beautiful astrophotos.

Compact and lightweight - ideal for traveling
The dew cap can be screwed over the tube, which shortens the transport length to only 40 cm. Due to the weight of only 2 kg, the refractor can also be carried by small and compact mounts or photo tripods. The flexible dovetail bar (Vixen GP style) also offers a 1/4" internal thread, suitable for photo tripods. The carrying handle makes transportation and attachment to the mount even easier.

The high-quality 2" rack-and-pinion focuser
The modern and stable focuser is also designed for heavy accessories. It offers a focusing range of 70 mm and, of course, dual-speed for precise focusing in astrophotography. The focuser has an internal thread which enables problem-free adaptation of motorized focus systems, such as the EAF from ZWO, without the need for an additional adapter. Of course, the optional correctors for astrophotography are screwed to the focuser, so no tilting is possible. Of course, the focuser also offers 360° rotation for ideal camera orientation.

A special highlight of the focuser are two quick-release couplings for viewfinder telescopes and mini guide scopes. This provides space for a finder or red dot finder and a guide scope or a flexible camera mount for parallel photography.

Astrophotography with the 80 mm ED refractor
Photographing the moon and planets is no problem thanks to the well-corrected color error and the comfortable working distance. Three correctors specially calculated for the ED are available for deep-sky photography. The correctors are simply screwed to the focuser using the M58x1 thread. The following correctors are available:

1.0x flattener - The focal length of 560 mm and the focal ratio of f/7 remain unchanged.
0.85x corrector - The focal length is reduced to 476 mm and the focal ratio is improved to f/5.95.
0.7x corrector - The focal length is reduced to 392 mm and the focal ratio is improved to f/4.9.


Astrophotographic results obtained with this telescope on Astrobin
Here are some astrophotographs made with this telescope model: Link to Astrobin

Observation with the 80 mm ED refractor
The refractor is designed for all visual applications thanks to the generous working distance of 168 mm from the 2" receptacle and the convenient adjustment range of the focuser. You can use 2" star diagonal mirrors, all common Herschel prisms for solar observation (please note: only with additional attenuation filter) and even binoviewers.

Scope of Delivery:

  • Optical Tube
  • Dust caps for objective and focuser
Products specifications
Technical Data
Aperture:80 mm
Focal length:560 mm
Focal ratio:f/7
Rear tube thread (connection to the focuser):M86x1 male
Objective:2-element objective with one ED element
Focuser:Dual-speed 2" R&P focuser with 70 mm adjustment range
Connection eyepiece side:2" receptacle and M58x1 male thread
Working distance from the 2" receptacle:168 mm with retracted focuser
Outer diameter of the dew shield:103 mm
Transport length:404 mm when the dew shield is screwed in
Working length:505 mm
Tube weight:2 kg with rings, dovetail bar and carrying handle