กล้องดูดาว Askar FRA400 72mm f/5.6 Quintuplet Petzval Flat-Field Astrograph #FRA400 - 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
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