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Have a question? We'd love to help. Email: info@allstartelescope.com Call Us: (587) 336-6621 Toll Free: 1 (866) 310-8844
Have a question? We'd love to help. Email: info@allstartelescope.com Call Us: (587) 336-6621 Toll Free: 1 (866) 310-8844

Askar 107PHQ Quadruplet Refractive Astrograph (107PHQ)

SKU 107PHQ
Original price $3,149.95 - Original price $3,149.95
Original price
$3,149.95
$3,149.95 - $3,149.95
Current price $3,149.95

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International shipping available by request. Contact Us

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As the first long-focal-ratio Flatfield astrograph from Askar, 107PHQ is born with a special mission: whether you are just getting started in astrophotography, or an enthusiast who has been quite familiar with all equipment and devices, you can always find Askar 107PHQ a useful astrograph which is functionally practical and physically attractive.

Description

This telescope is especially amateur or beginner friendly since you don’t need to attach an extra field flattener to get a satisfactory picture. And for the fact that you don’t need a flattener and you can easily get over back-focus calculation and confusing connection steps, all you need to do is to equip your 107PHQ with any possible imaging devices, make the target stay at the focus, and then the whole optical system is perfect for imaging.

Askar 107PHQ can capture tiny star objects due to its 740mm focal length and astonishing field flattening capacity. When an Askar 107PHQ and a high-resolution camera are used, it can still bring out lots of detailed information of your target. It is also a nice choice for your visual observation. It fits 1.25", 2" zenith mirrors as well as various eyepieces and can achieve a perfect focus. It can even be used to observe planets with a super-high magnification eyepiece.

Askar 107PHQ, an f/7 astrograph, contains four lenses including two pieces of ED glass, which can better reduce chromatic aberration. It can achieve excellent color correction even with the magnification mounting to 300× in visual observation.

The sleek 107PHQ is assembled with high-quality CNC-machined components and wrapped with smooth coating. The calm and seriousness is offset by the bright green decorative rings or knobs. The 3.4" rigid focuser is capable of handling a load of 8kg. It’s designed with a long travel distance of 95mm, which is suitable for visual observation. And it’s been optimized especially for astrophotography.

The built-in Flatfield lens is a great contribution to Askar 107PHQ's imaging ability. It supports 44mm full-frame imaging. The stars around the corner of the images seldom suffer from distortion or deformation. At the center of its field of view, the RMS radius is merely 3um. Even a fastidious user can also be satiated when it comes to the shape of stars. Askar 107PHQ can effectively handle with problems of field curvature and vignette.

Quick Overview

  • 107mm aperture
  • 749mm focal length
  • Quadruplet air-spaced APO design
  • Supports full frame
  • 3um central RMS radius 
  • No need for flattener
  • 0.7x reducer (optional)
  • No need to calculate backfocus
  • Retractable lens hood
  • 300mm dovetail plate
  • Multi-functional handle
  • 3.4" rack-and-pinion focuser
  • 1:10 fine adjustment
  • Various adapters included

What's in the Box

  • 107PHQ Optical Tube
  • A pair of rings
  • A handle
  • A 300mm vixen dovetail plate
  • A set of four-piece photographic adapters
  • A manual

Specifications

Aperture 107mm
Focal Length 600mm
Focal Ratio F/7
Objective Type Quadruplet air-spaced APO (Including two ED elements)
Image Circle 44mm
Maximum accessory connection (with the focuser fully retreated):
Imaging Mode
  • 79mm (from the base of M48×0.75 male thread)
  • 99mm (from the base of M54×0.75 male thread)
  • 119mm (from the base of M68×1male thread)
  • 149mm (from the base of M86×1 male thread)
Maximum accessory connection (with the focuser fully retreated):
Observing Mode
  • 120mm (from the end of 2" visual back)
Overall Length
  • 603mm(when the dew shield is contracted
  • 754mm(when the dew shield is stretched)
Net Weight 5.7kg
Gross Weight 6.9kg
Rear-end thread type
  • M86×1 to M68×1
  • M68×1 to M54×0.75
  • M54×0.75 to M52×0.75
  • M52×0.75 to M48×0.75 (with M48×0.75 filter thread)
Four-piece photographic adapter M48×0.75