Askar Flattener 1.0x 160 f/7 (87467)

A field flattener is an optical lens designed to correct the slight curvature of the image field produced by a telescope’s primary optics. This inherent curvature causes stars near the edges of the field of view to appear less sharp. By compensating for this effect, the flattener ensures that stars remain sharp and well-defined across the entire image, from the center to the outer edges of the frame.

The flattener is installed between the telescope and the camera, making it an essential accessory for astrophotographers who want evenly focused, high-quality images across the full sensor area.

Specifications

• Compatible telescopes: Askar 160/1120 Triplet Apo

• Telescope-side connection: M84

• Camera-side connection: M48

• Focal length reduction: 1.0× (no reduction)

• Back focus: 55 mm at M48

• Number of lenses: 3

• Optical coating: Fully multi-coated

• Filter thread: Yes, 2-inch

• Fully corrected image circle: 44 mm

General information

• Type: Flattener / Corrector

• Design: Field flattener