Askar FRA400 72mm f/5.6 Petzval Astrograph
AED 5,800.00
- 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 ultimate portable Astro photo and nature photography instrument in this size
- ED glass in the lens for very good correction of chromatic aberration
- 140 mm working distance for visual observation or focal length reduction
- Flexible GP/EQ5 style dovetail bar with photo tripod connection and carrying handle with flexible slotted hole
- Finder shoe for standard finder holder
Available on backorder
Description
Askar FRA400 72mm f/5.6 Petzval Astrograph: Best choice for Astrophotography
The FRA400 quintuplet astrograph has adopted modern optical design with a retractable dew shield, a 3″ rack-and-gear-based high-precision reducer containing a 360-degree rotator, M68×1 thread, a 2″ adapter ring and a 1.25″ visual adapter. The reducer is equipped with fine focal adjustment function for more precise calibration in practical observation or sky imaging.
It’s excellent in controlling and possibly avoiding chromatic aberrations. The image quality is also optimized to satisfy various observing or imaging purposes.
A photo specialist, but also suitable for observation:
The ASKAR FRA400 is designed for astrophotography. However, due to the comfortable working distance, 2″ star diagonals can also be connected. This turns the astrograph into a very nice spotting scope and telescope for astronomical observation and also landscape observation. All common 2″ and 1.25″ accessories can be connected.
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