ASKAR N210 f/3.4 NEWTONIAN
The Askar N210 is a fast f/3.4 Newtonian astrograph that offers high performance for an exceptionally low price. When paired with the included 0.95x triplet coma corrector, the N210 delivers sharp stars across an APS-C frame.

Utilizing ultra-low thermal expansion borosilicate glass mirrors with enhanced aluminium coatings, the N210 delivers sharp, clear images with excellent illumination across the APS-C field of view. The carbon fibre tube ensures structural stability and optical alignment over a wide temperature range whilst maintaining light weight.

Collimation of the N210 is straightforward and stable thanks to oversized primary mirror knobs and 3mm hex screws on the secondary spider. Predrilled M4 screw holes allow you to securely attach a dew shield (sold separately). Distance to the correcting lens can be precisely fine-tuned using the included 0.1 - 0.3mm shims, ensuring sharp stars corner to corner.

The N210 is equipped with a smooth and rigid dual-speed rack & pinion focuser which is natively compatible with many common electronic focus motors like the ZWO EAF. Three pairs of push-pull adjustment screws allow easy tilt adjustment and rotation for precise framing.

Thanks to the included 0.95x triplet coma corrector, the N210 doesn't need extra accessories to be imaging-ready. This reduces the native f/3.6 focal ratio and 754mm focal length down to f/3.4 and 714mm, ideal for capturing many nebulae. The corrector features male M48 x 0.75 threads for secure connection to common imaging trains.

The slotted handlebar allows you to mount guidescopes, control units and other accessories which have a finder-style dovetail, like the ZWO ASIAIR or ToupTek StellaVita. The included 400mm Vixen-style dovetail bar allows you to use the N210 with a wide range of telescope mounts.




Specifications
| Optical design |
Newtonian reflector |
|
Aperture |
210 mm |
|
Focal length |
756 mm (native); 714 mm (with corrector) |
|
Focal ratio |
f/3.6 (native); f/3.4 (with corrector) |
|
Corrector reduction factor |
0.95 x |
|
Image circle |
APS-C |
|
Primary mirror |
Parabolic |
|
Secondary mirror minor axis |
71 mm |
|
Mount attachment |
400 mm Vixen-style dovetail with 1/4"-20 & 3/8" screw holes |
|
Focuser |
2" rack & pinion dual speed |
|
Tube weight |
7.9 kg (9.8 kg with dovetail and rings) |
|
Tube length |
640 mm |
|
Tube diameter |
264 mm |
|
Corrector weight |
0.22 kg |
|
Connections |
2", M48 x 0.75 Male |
|
Backfocus |
55 mm |
|
SKU |
AS-N210 |



Items included
- N210 OTA
- Pair of tube rings
- 400mm Vixen bar
- Multifunctional handle
- 0.95x coma corrector
- M58 to M48 adapter
- 2 x 0.1mm, 0.2mm & 0.3mm shims
Instructions


Downloads
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