ASKAR 65PHQ 0.7 Reducer

ASKAR 65PHQ 0.7 Reducer

Transform Your Askar 65PHQ into a Fast f/4.8 Imaging Powerhouse

Unlock a Wider Field and Faster Exposures with the Askar 0.75x Full-Frame Reducer

Designed exclusively for the Askar 65PHQ f/6.4 APO Quintuplet Astrograph, the Askar 0.75x Full-Frame Reducer is an essential upgrade for astrophotographers seeking a broader field and shorter exposure times. By reducing the focal length and focal ratio, this advanced reducer optimizes your telescope for full-frame imaging and faster results.

Enhanced Optical Speed & Field of View

Engineered with a quadruplet lens configuration, the reducer compresses the focal length of the 65PHQ from its native 416 mm to just 312 mm, effectively changing the focal ratio from f/6.4 to a swift f/4.8. The result? Brighter, sharper images in shorter exposure times—perfect for capturing large nebulae, star fields, and deep-sky objects with greater clarity.

Designed for Astrophotography Excellence

The Askar 0.75x reducer is tailored to meet the needs of modern astrophotographers:

• Optimized for Full-Frame Sensors

• 55mm back focus, standard for most imaging setups

• Quadruplet optics to ensure edge-to-edge sharpness and minimal aberrations

• Compatible filter thread: M48x0.75 supports standard 2" filters

• Includes two camera-side adapters:

  • M54x0.75

  • M48x0.75 (with internal filter threads)

Whether you're using a DSLR or dedicated astronomy camera, this reducer helps you achieve pinpoint stars across a wider field.

Simple Installation & Versatile Connectivity

Installing the reducer is easy:

1. Unscrew the eyepiece base from the end of your Askar 65PHQ optical tube.

2. Remove the reducer’s protective end cap.

3. Insert the reducer into the inner tube of the focuser.

4. Tighten securely, and you're ready to go.

With included M54 and M48 threaded adapter rings, you’ll enjoy seamless integration with various cameras and accessories. The M48 ring also allows the use of mounted 2" filters—making it perfect for light pollution or narrowband imaging.

Take Your Imaging to the Next Level

By upgrading your Askar 65PHQ with this 0.75x full-frame reducer, you're not just modifying your telescope—you’re transforming its capabilities. Capture more sky, in less time, with stunning clarity and flexibility.

Whether you're chasing wide-field nebulae or creating detailed mosaics, this reducer delivers professional results in a compact, easy-to-use form. An ideal companion for any serious astrophotography setup.