Askar 60F 60mm f/6.8 Flat-Field APO Astrograph
The Askar 60F is a compact 60mm flat-field apochromatic refractor designed for both astrophotography and visual observing. Its quadruplet optical system includes one ED element and provides a 408mm focal length at f/6.8, with a corrected 44mm image circle suitable for full-frame imaging.
Key features
- Aperture: 60mm.
- Focal length: 408mm.
- Focal ratio: f/6.8.
- Optical design: Quadruplet air-spaced APO with one ED element.
- Corrected image circle: 44mm.
- Focuser: 2.4-inch dual-speed rack-and-pinion with 1:10 fine adjustment and 360° rotator.
- OTA weight: 2.36kg; approximately 2.86kg with tube rings and dovetail plate.
- Mounting: 230mm Vixen-style dovetail plate.
- Camera connections: M48×0.75 and M54×0.75 adapters supplied.
Designed for straightforward imaging
The 60F uses a self-flattened optical design, so it does not require a separate field flattener for its native configuration. Its compact size, corrected full-frame field and moderate focal length make it well suited to wide-field nebulae, star fields and portable imaging systems.
Verified specifications
| Aperture | 60mm |
|---|---|
| Focal length | 408mm |
| Focal ratio | f/6.8 |
| Optical design | Quadruplet air-spaced APO, including one ED element |
| Image circle | 44mm |
| Focuser | 2.4-inch dual-speed rack-and-pinion, 1:10 fine adjustment |
| OTA weight | 2.36kg |
| Weight with rings/dovetail | 2.86kg |
Askar 60F: product details and optical performance
For advice on pairing the Askar 60F with a suitable mount, camera and accessories, contact Dark Clear Skies.
