Brand: SharpStar

Askar 65PHQ Quintuplet Refractive Astrograph (65PHQ)

65PHQ

Brand: SharpStar

Askar 65PHQ Quintuplet Refractive Astrograph (65PHQ)

65PHQ

  • 65mm aperture
  • 416mm focal length
  • Quintuplet air-spaced APO design
  • Supports full frame
  • 2.5μm central RMS radius 
  • No need for flattener
  • 0.75x reducer (optional)
  • No need to calculate backfocus
  • Retractable lens hood
  • 300mm dovetail plate
  • Multi-functional handle
  • 2.5" rack-and-pinion focuser
  • 1:10 fine adjustment
  • Various adapters included
$1,348.65 CAD

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Product Description

65PHQ is a flatfield astrograph newly launched after 80PHQ, 107PHQ, and 130PHQ. Instead of buying extra flatteners, calculating the back focus of the flattener, or making a tedious connection to match the correct distance, astrophotographers can simply equip it with any possible imaging accessories, make the target stay at the focus, and then the whole optical system is perfect for imaging.

65PHQ has a smaller size than other PHQ astrographs. 65PHQ has a focal ratio of f/6.4 and a focal length of 416mm. Instead of the quadruplet structure of other PHQs, the 65PHQ is a quintuplet with two ED glasses which offers excellent control of chromatic and other aberrations. With its self-flattening design, 65PHQ offers strong advantages in the astronomical shooting. It supports the full-frame image circle and has a fine spot diagram with tiny distortions of the peripheral stars.

65PHQ comes with a telescopic lens hood, a high-quality CNC machined and painted tube, and attractive decorative parts. The OTA weighs 2kg, and the full package with tube rings, etc. weighs 2.8kg. The 2.5” rigid focuser comes with a new-type 360° rotator with scales and a finder base. M68, M54, and M48 camera adapters are also attached, and the M48 adapter has a 2” female thread for installing filters.

It is also a nice choice for your visual observation. It fits diagonals 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. The 65PHQ contains a multifunctional handle, a 300mm dovetail plate, and sturdy double tube rings. It is small in size and light in weight, which perfectly caters to your need for viewing and shooting.

What can I see with a Askar 65PHQ Quintuplet Refractive Astrograph (65PHQ)?

Here are some simulated views of common objects. Results with your telescope will vary with viewing conditions, obrits, equipment and more.

Jupiter with

25mm Eyepiece - 17x Magnification

(Sold Separately)

Jupiter with

10mm Eyepiece - 42x Magnification

Sold Separately

Jupiter with

5mm Eyepiece - 83x Magnification

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Moon with 25mm Eyepiece

17x Magnification

(Sold Separately)

Moon with 10mm Eyepiece

42x Magnification

Sold Separately

Moon with 5mm Eyepiece

83x Magnification

Sold Separately

Andromeda with 36mm Eyepiece

12x Magnification

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Andromeda with 25mm Eyepiece

17x Magnification

(Sold Separately)

Andromeda with 10mm Eyepiece

42x Magnification

Sold Separately

What's in the Box

  • 65PHQ Optical Tube
  • A pair of rings
  • A handle
  • A 300mm vixen dovetail plate
  • A set of three-piece photographic adapters
  • A manual

Specifications

Aperture 65mm
Focal Length 416mm
Focal Ratio f/6.4
Objective Type Quintuplet air-spaced APO (including two ED glasses)
Image Circle 44mm
Maximum accessory connection (with the focuser fully retreated):
Imaging Mode
  • 85mm(from the base of M48×0.75 male thread)
  • 114mm(from the base of M54×0.75 male thread)
  • 139mm(from the base of M68×1 male thread)
Maximum accessory connection (with the focuser fully retreated):
Observing Mode
  • 121mm(from the end of 2" eyepiece holder)
Overall Length
  • 328mm(including 1.25" eyepiece holder as dew shield contracted)
  • 388mm(including 1.25" eyepiece holder as dew shield fully stretched)
  • 360mm(including the 3-piece adapter as dew shield contracted)
  • 420mm(including the 3-piece adapter as dew shield fully stretched)
Net Weight 2.0kg
Gross Weight 2.8kg
Rear-end thread type
  • M68×1-M54×0.75
  • M54×0.75-M54×0.75
  • M54×0.75-M48×0.75 (M48×0.75 filter thread inside)
Three-piece photographic adapter M48×0.75

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