65PHQ
Askar
From $899.00
3 stores
The Askar 65PHQ is a compact quintuplet flat-field astrograph designed for astrophotography and visual observation. With a 65mm aperture and 416mm focal length (f/6.4), its five-element optical design with two ED glass elements delivers sharp, high-contrast images while maintaining a flat field across full-frame sensors—eliminating the need for additional flatteners or back-focus calculations. The 2.5" dual-speed focuser with 360-degree rotator and included M48, M54, and M68 camera adapters make it an out-of-the-box solution for both beginner and experienced astrophotographers seeking a lightweight, versatile imaging platform.
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Specifications
| Focal length | 416 mm |
| Weight (OTA) | 2 kg |
| Dovetail Plate Length | 300 mm |
| Optional Reducer Focal Ratio | f/4.8 |
| Rotator | 360-degree |
| Optional Reducer Focal Length | 312 mm |
| Weight (Full Package) | 2.8 kg |
| Camera Adapters | M48, M54, M68 |
| Optical design | Quintuplet APO (5-element) |
| Focal ratio | f/6.4 |
| Aperture | 65 mm |
| Image Circle | 44 mm |
| Focuser Speed | 10:1 Fine-Tune |
| Flat Field | ✓ |
| ED Glass Elements | 2 |
| Focuser Type | 2.5 inch Rack and Pinion |
| Filter Thread | M48 (2 inch female) |