OTA · 2022–
Askar 65PHQ
Key specifications
| Aperture | 65 mm |
|---|---|
| Focal length | 416 mm |
| Focal ratio | f/6.4 |
| Optical design | Other |
| Back focus | 130 mm |
| Weight | 2 kg |
All specifications
| Focuser type | 2.5" rack and pinion |
|---|---|
| Tube length | 328 mm |
| Dovetail | Vixen |
About
Smallest PHQ astrograph: 65mm f/6.4 self-flattening Petzval with a quintuplet (3+2) air-spaced layout including two ED elements. Full-frame (44mm) flat field with no back-focus calculation; 2.5" dual-speed focuser, 360° rotator, M68/M54/M48 adapters. Optional 0.75x reducer yields 312mm f/4.8.
Where to buy
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