Askar 71F Flat-Field Telescope, 71mm Aperture F6.9 ED Glass Refractor OTA, Quadruplet air-Spaced APO, 230mm Vixen Dovetail Plate for Deep Sky Astrophotography and Visual Astronomy
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About this product
Overview
The Askar 71F is a compact quadruplet refractor meticulously engineered for aberration-free deep sky imaging and visual observation. Its innovative flat-field design and premium ED glass optics deliver exceptionally crisp, color-corrected views across a generous field, while the sophisticated quadruplet air-spaced APO configuration virtually eliminates chromatic aberration.
Key Specifications
This OTA features a 71mm aperture and F6.9 focal ratio, yielding a 490mm focal length that is ideal for wide-field astrophotography of nebulae and star clusters. It includes a built-in 230mm Vixen dovetail plate for reliable mounting on equatorial or alt-az mounts, plus a retractable dew shield for convenience during long sessions.
Who It's For
Astrophotographers seeking sharp, coma-free images of nebulae and galaxies without needing a separate field flattener will find this telescope perfect for their rig. Visual observers also benefit from its portable size and high contrast on lunar, planetary, and double star targets.
Worth Buying?
The Askar 71F offers excellent value by combining professional-grade optics in a compact, travel-friendly package that won't weigh down your kit. Its 71mm aperture and F6.9 speed capture ample light while maintaining superb correction, making it a smart investment for serious enthusiasts or those upgrading from smaller refractors.