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Top news results for quintuplet refractor
Askar SQA106 review by AstroBackyard
Thursday, April 10, 2025 by Russ Scritchfield
The Askar SQA106 is a 106mm aperture refractor telescope with a focal length of 509mm and a focal ratio of f/4.8. It uses a fixed quintuplet Petzval design that includes two SD (super low dispersion) glass elements. This configuration is designed to minimize field curvature and maintain sharp focus ...
New Askar SQA70 launched
Friday, March 7, 2025 by Richard Harris
Askar recently introduced it's newest telescope, the Askar SQA70, a 70mm f/4.8 Quintuplet Petzval Astrograph with outstanding optical performance and advanced features. At the heart of the Askar SQA70 is its sophisticated quintuplet air-spaced Petzval design, which includes two Extra-low Dispers...
Apertura 75Q refractor telescope powered by SharpStar
Sunday, April 21, 2024 by Richard Harris
The Apertura 75Q Refractor Telescope, powered by SharpStar, is tailor-made for astrophotography enthusiasts, whether novices or experts. This quintuplet refractor features fully corrected optics that provide near-perfect color correction and are optimized for full-frame sensors without the need for ...
Draco 62 quintuplet imaging refractor telescope from Founder Optics
Thursday, April 18, 2024 by Richard Harris
The Draco 62, by Founder Optics, is a cutting-edge astrograph with a quintuplet refractor design, optimized for deep-sky imaging at f/3.9 with its reducer. It's lightweight, nitrogen-injected for fog and waterproof resilience, and boasts simple collimation with high mechanical stability. It incl...