Askar SQA55 55/264 Astrograph

Name: Askar SQA55 55/264 Astrograph
Brand: Askar
SKU: 85287
Price: 999 EUR
Availability: InStock

999,00 €

Tasse incluse

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

Descrizione
Dettagli del prodotto

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 Unpublished values are not inferred.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 blades	14 pieces
Aperture range	f/4.8-f/22
Minimum focus distance	5m
Focusing mode	Manual focus
Front filter thread	M67
Weight with handle and dovetail	2.18kg
Fine focus travel	±1 mm
Tripod mounting	1/4-inch and 3/8-inch holes
Rear accessory mounts	4

Riferimento 85287

Scheda tecnica

Apertura: 55mm
Distanza di collegamento camera: Support 50-60mm range (Recommended connection length is 55mm)
Paraluce: Reversible bayonet hood
Coda di rondine: 200 mm Vixen-style, quick release
Correzione di campo: Integrated Petzval
Focale: 264mm
Rapporto focale: f/4.8
Focheggiatore: Independent coarse and fine adjustment; MXL belt teeth on coarse ring
Maniglia: Quick-release with finder-base slot
Cerchio d'immagine: 44mm
Configurazioni di lunghezza: 316mm (including dew shield); 244mm (without dew shield)
Dotazione standard del produttore: SQA55 OTA; waterproof carrying case; documentation
Modello: SQA55
Schema ottico: Quintuplet petzval APO（One piece of SD glass, one piece of ED glass）
Peso del tubo ottico: 1.84kg
Adattatore posteriore: M48×0.75 (with M48×0.75 filter thread)
Rotatore: 360° graduated, independent lock

Hai usato questo prodotto? Condividi la tua esperienza con altri astronomi.

Commenti (0)

Ancora nessuna recensione da parte degli utenti.

Prodotti visti

Celestron

Celestron EdgeHD 11 OTA (CGE dovetail)

11" EdgeHD aplanatic optical tube, 2800 mm f/10, CGE (Losmandy-style) dovetail bar.

4.199,00 €

Tempi di consegna da confermare