ZWO FF65 APO Quintuplet Flat Field Refractor Telescope 65mm f/6.4 Astrograph OTA for Astrophotography
ZWO FF65 APO Quintuplet Flat Field Refractor Telescope 65mm f/6.4 Astrograph OTA for Astrophotography Original price was: ₨349,000.00.Current price is: ₨285,000.00.
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ZWO FF80 APO Flat Field Refractor Telescope 80mm f/7.5 APO Astrograph for Deep Sky Astrophotography
ZWO FF80 APO Flat Field Refractor Telescope 80mm f/7.5 APO Astrograph for Deep Sky Astrophotography Original price was: ₨585,444.00.Current price is: ₨449,000.00.

Askar 107PHQ Flat Field Astrograph 107mm f/7 Quadruplet APO Refractor Telescope for Astrophotography

Original price was: ₨1,250,000.00.Current price is: ₨995,000.00.

The Askar 107PHQ is a premium 107mm flat-field quad APO astrograph designed for high-end astrophotography. Featuring a built-in field flattener and 44mm full-frame image circle, it delivers sharp, distortion-free wide-field images with excellent color correction and minimal setup complexity.

Description

Product Description

The Askar 107PHQ Flat Field Astrograph is a professional-grade 107mm apochromatic refractor designed specifically for modern deep-sky astrophotography. Its advanced quad-element Petzval optical design integrates a built-in field flattener, eliminating the need for external correctors and simplifying imaging setup.

With a 107mm aperture and 740–749mm focal length at f/7, the 107PHQ delivers a perfect balance between resolution and field of view. It is optimized for capturing large nebulae, star fields, and medium-scale deep-sky targets with exceptional sharpness across the entire frame.

The optical system uses high-quality ED glass elements to reduce chromatic aberration and produce tight, round stars even at the edges of a full-frame sensor. Its 44mm corrected image circle ensures compatibility with modern CMOS astronomy cameras, making it a powerful choice for serious imagers.

A heavy-duty 3.4″ rack-and-pinion focuser provides smooth, precise focusing and supports heavy imaging trains, including filter wheels and cooled cameras. The system is widely regarded as a “plug-and-play” astrograph for users who want professional results without complex optical spacing calculations.


Specifications

  • Model: Askar 107PHQ
  • Optical Design: Quadruplet Petzval Flat Field APO Astrograph
  • Aperture: 107mm
  • Focal Length: 740–749mm
  • Focal Ratio: f/7
  • Field Correction: Built-in flat-field optical system (no external flattener required)
  • Image Circle: 44mm (full-frame compatible)
  • Optical Elements: 4-lens design including ED glass elements
  • Focuser: 3.4″ rack-and-pinion focuser with fine adjustment
  • Mount Type: Vixen-style dovetail compatible
  • Usage: Deep-sky astrophotography, galaxies, nebulae, wide-field imaging
  • Backfocus: Designed for flexible camera and imaging train spacing

What’s Inside the Box

  • 1 × Askar 107PHQ Optical Tube Assembly
  • 1 × 3.4″ Heavy-Duty Focuser Assembly
  • 2 × Tube Rings with Handle
  • 1 × Vixen Dovetail Plate
  • 1 × M48/M54/M68 Adapter Set
  • 1 × Aluminum Carrying Case
  • 1 × User Manual
  • 1 × Original Packaging Box
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