Askar 65PHQ APO Refractor Telescope

Overview

Askar's PHQ line puts this 65PHQ refractor telescope toward astrophotography rather than casual stargazing, using a manual-focus Petzval Quadruplet optical design.

PHQ-series scopes use a four-element Petzval design meant to produce a flat, coma-corrected field across the frame of an attached camera sensor, which is the main reason astrophotographers pick this design over a standard refractor. Manual focus is standard for this class of scope, since most imaging setups pair it with a separate motorized focuser anyway.

• Petzval Quadruplet (PHQ) optical design
• Manual focus
• Askar telescope brand
• Model 65PHQ

Who it's for

Astrophotographers assembling an imaging rig and wanting a flat-field refractor as the optical tube are the target audience, not anyone wanting a simple grab-and-go visual telescope.

Pros and cons

Performance notes

The Petzval Quadruplet design corrects field curvature and coma across the imaging circle, which is what keeps stars sharp into the corners of a camera frame rather than just the center.

Specifications