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Ships within 48 hours · Estimated delivery Aug 21 - Aug 26
Optics: 50 mm f/5 apochromatic triplet refractor for sharp
The sensor size is 7
Retekess TD103 Long Range Coaster Pager System 1000m Out of Range Alarm for Restaurant
CCD Astrophotography: Very good – optimal suppression of light pollution
Askar SQA55 55mm f/4.8 Petzval Astrograph | Dark Clear Skies brass compression ring Optics: 50 mm f/5 apochromaticAskar SQA55 55mm f 4. 8 Petzval Astrograph The Askar SQA55 55mm f 4. 8 Petzval Astrograph is a compact wide field refractor designed specifically for astrophotography. Featuring a precision quintuplet air spaced optical design incorporating both SD and ED glass elements, the Askar SQA55 delivers excellent colour correction and a naturally flat imaging field without the need for an additional field flattener. With a 264mm focal length and fast f 4. 8
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