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Quintuplet air-spaced SD glass Petzval astrograph, which can be used for astrophotography and daily photography. Specifications SQA55 Parameters Aperture size 55mm Focal length 264mm Focal ratio f/4.8 Objective lens Quintuplet petzval APO（One piece of SD glass, one piece of ED glass） Format specifications 44mm Aperture blades 14 pieces Graded Aperture f/4.8-f/22 Closest Focus Distance 5m Focusing mode Manual focus Filter Diameter M67 Total length 316mm (inclulding dew shield); 244mm (without dew shield) OTA weight 1.84kg Total weight (including handle & dovetail plate) 2.18kg Rear-end adapter M48*0.75 (with M48×0.75 filter thread) Rear-end connection distance Support 50-60mm range (Recommended connection length is 55mm) Standard package items a SQA55 OTA, a military-grade waterproof hand-carrying case Product Size Diagram Video Promotional Video·Deep Space Astronomy Promotional Video·Landscape Photography Images Mr.ZhuLiQun | NGC7000 | ASKAR SQA55 + ZWO ASI 6200 sandwall & ARK | M20+M8 | ASKAR SQA55 + ZWO ASI 2600MC Pro Drew Evans | THE GREAT RHO OPHIUCHI CLOUD COMPLEX | ASKAR SQA55 + ZWO ASI2600MC DUO · ZWO ASI2600MM Pro sandwall | Veil Nebula | ASKAR SQA55 + ZWO ASI 2600MC Pro Download SQA55 User's Manual
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🇺🇸 Ship from USA · On Agora since 2024
$795.00