Askar 80PHQ F/6.4 ED Flatfield Astrograph
| Article number: | ASKAR-80PHQ |
| Availability: | More on the Way to us |
| Delivery time: | More on the Way to Us |
The Askar 80PHQ is a compact, long-focal-ratio refractive astrograph designed for astrophotography and visual observation. With an 80mm aperture and 600mm focal length, the 80PHQ provides a relatively long focal length in a compact optical tube while maintaining a flat imaging field suitable for full-frame cameras.
The 80PHQ uses a quadruplet air-spaced APO optical design incorporating two ED glass elements for improved chromatic aberration correction. Its integrated flat-field optical system eliminates the need for a separate field flattener, simplifying imaging setup and backfocus calculations. The 44mm image circle provides full-frame coverage.
A 3" rack-and-pinion focuser with 1:10 fine adjustment provides precise focusing, while the integrated rotator features graduated markings for accurate camera framing. Multiple rear adapter configurations provide M48, M54, M68, and M76 connections for photographic setups.
The telescope features a retractable dew shield, multifunction handle, tube rings, and a 300mm Vixen-style dovetail plate. An optional 0.76x reducer is available for a shorter effective focal length and faster imaging system.
Key Specifications:
- Aperture: 80mm
- Focal Length: 600mm
- Focal Ratio: f/7.5
- Optical Design: Quadruplet air-spaced APO
- ED Elements: 2
- Image Circle: 44mm, full-frame
- Focuser: 3" rack-and-pinion
- Focuser Fine Adjustment: 1:10
- Rotator: 360° with graduated markings
- Rear Connections: M48, M54, M68, and M76
- Dew Shield: Retractable
- Mounting: 300mm Vixen-style dovetail
- OTA Weight: Approximately 8.6 lb
- Complete Weight with Tube Rings and Dovetail: Approximately 10.4 lb
- Optional Accessory: 0.76x reducer
Use Cases:
- Full-frame astrophotography
- Deep-sky imaging
- Galaxy photography
- Nebula and star cluster imaging
- Lunar and planetary photography
- Visual observation
- General astronomical photography