Some users may be frustrated that it’s hard to make a trade-off between 107PHQ and 80PHQ, since there seems to be so much in common. And especially for those who are new to astrophotography, the complicated designations and confusing numbers are really a major obstacle when they hopefully try to pick out just the proper one from oceans of dazzling products.
Indeed, 170PHQ and 80PHQ are similar in many aspects partially because they are both the newly-developed refractive astrographs from the same family. However even if they all have excellent mechanical design and sophisticated optical system, there are noticeable differences between these two.
Indeed, 170PHQ and 80PHQ are similar in many aspects partially because they are both the newly-developed refractive astrographs from the same family. However even if they all have excellent mechanical design and sophisticated optical system, there are noticeable differences between these two.
At the first glance, Askar 80PHQ is much more compact. 107PHQ is 603mm in length and weighs 5.7kg whereas 80PHQ is 448mm in length and weighs 3.9kg. So if your equatorial mount is not capable of holding heavy telescopes, or if you are quite tired of carrying a bulky long focal-ratio telescope around, then 80PHQ may be a great option.
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Andrea Maggi,NGC2264
ASKAR 80PHQ + ASI 6200，Filter Optolong 3nm
ASKAR 80PHQ + ASI 6200，Filter Optolong 3nm
Aperture size：80mm
Focal length：600mm
Focal ratio：f/7.5
Objective lens：Quadruplet air-spaced APO (including two ED glass)
Image circle：44mm
Maximum accessory connection (with the focuser fully retreated)：
1. Imaging mode:
115mm（from the base of M48×0.75 male thread）
135mm（from the base of M54×0.75 male thread）
155mm（from the base of M68×1male thread）
168.5mm（from the base of M76×1 male thread）
2. Observing mode:
148mm（from the end of 2" eyepiece holder）
Total length：448mm（including 1.25" eyepiece holder as dew shield contracted）
480mm（including the 4-piece adapter as dew shield contracted）
540mm（including 1.25" eyepiece holder as dew shield fully stretched）
570mm（including the 4-piece adapter as dew shield fully stretched）
Net weight：3.9kg
Gross weight：4.7kg
Rear-end thread type：M76×1-M68×1
M68×1-M54×0.75
M54×0.75-M54×0.75
M54×0.75-M48×0.75（M48×0.75 filter thread inside）
Standard package items：an 80PHQ OTA，a pair of tube rings, a handle, an Askar 300mm Vixen dovetail plate, a set of 4-piece photographic adapters, a manual
Focal length：600mm
Focal ratio：f/7.5
Objective lens：Quadruplet air-spaced APO (including two ED glass)
Image circle：44mm
Maximum accessory connection (with the focuser fully retreated)：
1. Imaging mode:
115mm（from the base of M48×0.75 male thread）
135mm（from the base of M54×0.75 male thread）
155mm（from the base of M68×1male thread）
168.5mm（from the base of M76×1 male thread）
2. Observing mode:
148mm（from the end of 2" eyepiece holder）
Total length：448mm（including 1.25" eyepiece holder as dew shield contracted）
480mm（including the 4-piece adapter as dew shield contracted）
540mm（including 1.25" eyepiece holder as dew shield fully stretched）
570mm（including the 4-piece adapter as dew shield fully stretched）
Net weight：3.9kg
Gross weight：4.7kg
Rear-end thread type：M76×1-M68×1
M68×1-M54×0.75
M54×0.75-M54×0.75
M54×0.75-M48×0.75（M48×0.75 filter thread inside）
Standard package items：an 80PHQ OTA，a pair of tube rings, a handle, an Askar 300mm Vixen dovetail plate, a set of 4-piece photographic adapters, a manual
