80PHQ
Askar
From $1,495.00
4 stores
The Askar 80PHQ is a compact 80mm f/7.5 quadruplet refractor designed specifically for astrophotography with a built-in flat-field corrector. Featuring a 3+1 optical design with ED glass elements, it delivers sharp, well-corrected images across full-frame sensors without requiring a separate flattener or complex backfocus calculations. This portable astrograph weighs just 3.9kg and includes a robust 3-inch rack-and-pinion focuser with dual-speed adjustment, making it an excellent choice for deep-sky imaging where its long focal ratio provides excellent detail and star definition.
OPT
Askar 80PHQ Flatfield Super APO Quadruplet 80mm Astrograph
Worldwide shipping
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High Point Scientific
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Astronomy Plus
80PHQ F/7.5 Quadruplet Astrograph (80PHQ)
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Specifications
| Optical design | Quadruplet APO (3+1 with ED glass) |
| Field Flattening | Built-in |
| Focal length | 600 mm |
| Weight | 3.9 lb |
| Aperture | 80 mm |
| Tube Length | 448 mm |
| Image Circle | 44 mm |
| Focuser Speed | 10:1 dual-speed |
| Focal ratio | f/7.5 |
| Focuser Type | 3 inch Rack and Pinion |