Askar SQA85 Telescope

The Askar SQA85 f/4.8 85/408 is a professional astrograph designed for use with full-frame cameras and other imaging devices.

This astrograph features an optical system made up of five lenses, including two crafted from super low dispersion (SD) glass. This setup delivers high resolution, sharp image details, and excellent color reproduction by effectively correcting chromatic aberrations. The optical design supports a wide range of working distances, and the dual coarse and fine focusing system makes lens operation especially easy and precise.

In addition to its strong optical performance, the SQA85 is built for durability. Both the main body and the sunshade are constructed from metal, giving the telescope a solid feel and ensuring stable attachment to a tripod or mount using the supplied foot.

Key features of the Askar SQA85 f/4.8 85/408:

• Apochromatic lens for astrophotography with outstanding field curvature correction

• Two super low-dispersion glass lenses eliminate chromatic aberrations

• Additional knob for precise focusing

• Universal mounting with M48x0.75 thread

• Integrated accessory foot

• All-metal construction for durability

Included components:

• Askar SQA85 f/4.8 85/408 lens

• Mounting clamps

• 290 mm Vixen foot

• M68, M54, and M48 adapters

• Lens cover

• Documentation

Technical specifications:

• Optical design: apochromatic quintuplet in Petzval configuration

• Number of low-dispersion lenses: 2 SD lenses

• Focal length: 408 mm

• Front lens diameter: 85 mm

• Aperture: f/4.8

• Focuser: rack & pinion, 2.8"

• Focusing: manual, with coarse and fine adjustment

• Focus adjustment range: 30 mm

• Recommended back focus: 55 mm

• Working distance range: 40 - 70 mm

• Sensor format: full frame

• Mounting bracket: 290 mm Vixen foot

• Camera/mount adapters: M48, M54, M68

• Rotator: 360°

• Body material: metal

• Finish: silver-gray

• Length with extended sunshade: 439 mm

• Length with retracted sunshade: 403 mm

• Weight with accessories: 4.62 kg

Warranty:
24 months