Askar
Askar 65PHQ
Askar 65PHQ
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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.
Product introduction
65mm aperture
416mm focal length
Quadruplet air-spaced APO design
Supporting full frame
Central RMS radius 2.5um
No need for flattener
0.75x Reducer
(optional)
No need to calculate the backfocus
Retractable lens hood
300mm dovetail plate
multi-functional handle
2.5" large rack- pinion focuser
1:10 fine adjustment
Various adapter
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.
Specifications
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65PHQ Parameters |
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Aperture size |
65mm |
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Focal length |
416mm |
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Focal ratio |
f/6.4 |
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Objective lens |
Quintuplet air-spaced APO (including two ED glasses) |
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Image circle |
44mm |
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Maximum accessory connection (with the focuser fully retreated)： |
Imaging mode 76mm（from the base of M48×0.75 male thread） 105mm（from the base of M54×0.75 male thread） 130mm（from the base of M68×1 male thread） |
Observing mode 121mm（from the end of 2" eyepiece holder） |
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Total 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） |
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OTA Weight |
2kg |
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Total Weight (Including tube ring&dovetail plate） |
2.8kg |
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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) |
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Rear end of the 3-piece photographic adapters |
M48×0.75 |
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Standard package items |
A 65PHQ OTA, a pair of tube rings, a handle, Askar 300mm Vixen-style dovetail plate, a set of 3-piece photographic adapters, a manual |
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Video
Images
酱油颜 | NGC6992 | ASKAR 65PHQ+294mc | Colour Magic Super Duo Narrowband Filter
酱油颜 | NGC7293 | ASKAR 65PHQ+294mc | Colour Magic Super Duo Narrowband Filter
Zhu Li Qun | Heart Nebula+Soul Nebula | ASKAR 65PHQ+6200mm | SHO total 8 hours
James Negri | M42, The Great Orion Nebula | ASKAR 65PHQ+ASI533mc | Astronomik L-2 Luminance UV/IR Block 1.25"
Rumen Bogdanovski | Lagoon and Trifid nebulae | ASKAR 65PHQ+Player One Poseidon C Camera | Colour Magic D1
Rumen Bogdanovski | NGC 2237 | ASKAR 65PHQ+playerone poseidon c pro | Colour Magic D1
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