Askar FRA 400

Askar FRA 400


Regular price $1,199.99 Sale

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  • ASKAR FRA400 Quintuplet refractor with 72mm aperture and f/5.6 focal ratio, ideal for wide-field imaging of the deep sky
  • Petzval design ensures flat field across 44mm image circle, while two ED elements virtually eliminate chromatic aberration
  • Rotatable 3” rack-and-pinion focuser, M68-M48 adapter, 2” adapter ring, and 1.25”-2” adapter
  • Includes mounting rings, Vixen-style dovetail, and carrying handle
The Askar FRA Quintuplet series telescope is a top-of-the-line astrograph that can be easily transported. Designed for astrophotography sessions, it delivers high-quality flat-field images thanks to its built-in flat field correction feature. The telescope features a unique Petzval-like quintuplet design, utilizing two extra-low dispersion ED glass lenses on its 72mm f/5.6 refracting optical tube, providing a 44mm image circle with full-frame imaging support. This design effectively controls and reduces chromatic aberration. The OTA also features a retractable dew shield and a 3" rack-and-pinion, high-precision focuser that includes a 360-degree rotator, allowing for easy camera or accessory rotation. The focuser's fine focus adjustment makes it perfect for astro-imaging or visual observation.