Askar SQA55 55/264 Astrograph | PixelSkiesAstro
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  • Askar SQA55 55/264 Astrograph | PixelSkiesAstro
  • Askar SQA55 55/264 Astrograph | PixelSkiesAstro
  • Askar SQA55 55/264 Astrograph | PixelSkiesAstro
  • Askar SQA55 55/264 Astrograph | PixelSkiesAstro
  • Askar SQA55 55/264 Astrograph | PixelSkiesAstro
  • Askar SQA55 55/264 Astrograph | PixelSkiesAstro
  • Askar SQA55 55/264 Astrograph | PixelSkiesAstro
  • Askar SQA55 55/264 Astrograph | PixelSkiesAstro

Askar SQA55 55/264 Astrograph

999,00 €
Bruttopreis

Askar SQA55 The Askar SQA55 is a 55 mm f/4.8 Petzval astrograph with a 264 mm focal length. Its air-spaced quintuplet includes one SD and one ED element and supports a 44 mm full-frame image circle.

Manufacturer model: Askar SQA55 · Specifications checked against manufacturer data on 2026-11-04

Askar SQA55

The Askar SQA55 is a 55 mm f/4.8 Petzval astrograph with a 264 mm focal length. Its air-spaced quintuplet includes one SD and one ED element and supports a 44 mm full-frame image circle.

Camera spacing and aperture

The native self-flattened system works across a 50–60 mm camera connection range, with 55 mm recommended. A 14-blade diaphragm adjusts from f/4.8 to f/22. The front takes M67 photographic filters; the rear M48×0.75 adapter includes an internal 2-inch filter thread. Minimum focus is 5 m.

Independent focus and framing

Coarse and fine focusing have separate locks; fine adjustment provides ±1 mm travel. The coarse ring has a distance scale and MXL timing teeth for an optional belt-driven focuser. The tube orientation and graduated 360° rotator lock independently. Four rear quick-release accessory bases provide additional attachment options.

Mounting and transport

The quick-release handle incorporates a finder-base slot. A removable 200 mm Vixen-style dovetail and 1/4-inch/3/8-inch tripod holes support different mounts. The hood reverses for storage. Askar specifies 1.84 kg OTA and 2.18 kg with handle and dovetail, and includes a waterproof carrying case.

Askar manufacturer documentation

Askar SQA55 user manual

Compatibility notes

Exact named-model manufacturer specification table and operating information checked. Unpublished values are not inferred.

Additional specifications

Aperture blades14 pieces
Aperture rangef/4.8-f/22
Minimum focus distance5m
Focusing modeManual focus
Front filter threadM67
Weight with handle and dovetail2.18kg
Fine focus travel±1 mm
Tripod mounting1/4-inch and 3/8-inch holes
Rear accessory mounts4
85287

Technische Daten

Öffnung
55mm
Abstand Kameraanschluss
Support 50-60mm range (Recommended connection length is 55mm)
Taukappe
Reversible bayonet hood
Prismenschiene
200 mm Vixen-style, quick release
Feldkorrektur
Integrated Petzval
Brennweite
264mm
Öffnungsverhältnis
f/4.8
Okularauszug
Independent coarse and fine adjustment; MXL belt teeth on coarse ring
Griff
Quick-release with finder-base slot
Bildkreis
44mm
Längenkonfigurationen
316mm (including dew shield); 244mm (without dew shield)
Standard-Lieferumfang des Herstellers
SQA55 OTA; waterproof carrying case; documentation
Modell
SQA55
Optisches Design
Quintuplet petzval APO（One piece of SD glass, one piece of ED glass）
Tubusgewicht
1.84kg
Hinterer Adapter
M48×0.75 (with M48×0.75 filter thread)
Rotator
360° graduated, independent lock
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