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Why Purchase from All-Star Telescope?
Free Expert Support
Whether you are a first timer needing help with setting up or an enthusiast that can't quite make that one thing work, our expert staff are ready to support your needs. With decades of knowledge and first hand experience we've been there and we can help you through it!
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Shipping around for the best price is tough, we make it easier by offering the best pricing in the market. But if you find a better price on an in-store item somewhere else we will match it!
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Why we love the Askar 107PHQ Quadruplet Refractive Astrograph (107PHQ)
Product Description
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.
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 3μm. 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.
What can I see with a Askar 107PHQ Quadruplet Refractive Astrograph (107PHQ)?
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 - 30x Magnification
(Sold Separately)
Jupiter with
10mm Eyepiece - 74x Magnification
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Jupiter with
5mm Eyepiece - 148x Magnification
Sold Separately
Moon with 25mm Eyepiece
30x Magnification
(Sold Separately)
Moon with 10mm Eyepiece
74x Magnification
Sold Separately
Moon with 5mm Eyepiece
148x Magnification
Sold Separately
Andromeda with 36mm Eyepiece
21x Magnification
Sold Separately
Andromeda with 25mm Eyepiece
30x Magnification
(Sold Separately)
Andromeda with 10mm Eyepiece
74x Magnification
Sold Separately
What's in the Box
Specifications
| Aperture | 107mm |
| Focal Length | 740mm |
| 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 |
|
| Maximum accessory connection (with the focuser fully retreated): Observing Mode |
|
| Overall Length |
|
| Net Weight | 5.7kg |
| Gross Weight | 6.9kg |
| Rear-end thread type |
|
| Four-piece photographic adapter | M48×0.75 |
Additional Articles, Videos, and Links
Go Ahead, Look at the Sun (With the Right Equipment)
Solar observation and solar photography are a lot of fun with the right equipment, and this is a great time to start. Every 11 years the Sun’s magnetic field completely flips. That means that the...
How to Pick the Best Telescope Eyepieces
Finding the right new telescope eyepiece can be a game changer. This post will help you to pick the best telescope eyepiece for your needs.