Askar 80PHQ The Askar 80PHQ combines a 80 mm aperture with 600 mm focal length at f/7.5. Its air-spaced quadruplet optical system contains two ED elements and incorporates field correction for a 44 mm image circle.
Manufacturer model: Askar 80PHQ · Specifications checked against manufacturer data on 2026-11-04
The Askar 80PHQ combines a 80 mm aperture with 600 mm focal length at f/7.5. Its air-spaced quadruplet optical system contains two ED elements and incorporates field correction for a 44 mm image circle.
Imaging and visual use
At native focal length the optical system does not need an additional field flattener or a single prescribed flattener-to-sensor spacing. Connect the camera within the published accessory-connection limit and bring the target into focus. The connection allowance changes with the chosen rear adapter. Visual use is also supported with a suitable diagonal and eyepiece.
Focusing and camera orientation
A 3-inch rack-and-pinion focuser provides coarse adjustment and 1:10 fine focusing. The graduated 360° rotator lets you frame the target without turning the complete telescope. Threaded photographic adapters provide the interfaces listed below, including an internal M48×0.75 filter thread.
Mounting and supplied equipment
The telescope has a retractable dew shield, tube rings, a multifunction handle and a 300 mm Vixen-style dovetail plate. The technical table separates bare-OTA weight from weight with mounting hardware. A matching 0.76× reducer is optional and has its own connection and spacing requirements; it is not part of the standard native optical system.
Use the manufacturer technical table for lengths: 450/540 mm visual and 480/570 mm photographic. An introductory paragraph rounds the length differently. The table row labelled gross weight actually lists the package contents.
Additional specifications
Length configurations
450mm（including 1.25" eyepiece holder as dew shield contracted） 540mm（including 1.25" eyepiece holder as dew shield fully stretched） 480mm（including the 4-piece adapter as dew shield contracted） 570mm（including the 4-piece adapter as dew shield fully stretched）
77811
Fiche technique
Diamètre
80mm
Pare-buée
Retractable
Queue d'aronde
300 mm Vixen-style
Correction de champ
Integrated; no additional flattener required at native focal length
Filetage de filtre
M48×0.75 inside final adapter
Démultiplication de la mise au point fine
1:10
Focale
600mm
Rapport F/D
f/7.5
Porte-oculaire
3-inch rack-and-pinion, dual speed
Cercle image
44mm
Contenu standard du fabricant
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
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）; Observing mode 148mm（from the end of 2" eyepiece holder）
Modèle
80PHQ
Formule optique
Quadruplet air-spaced APO (including two ED glass)
Askar 80PHQ The Askar 80PHQ combines a 80 mm aperture with 600 mm focal length at f/7.5. Its air-spaced quadruplet optical system contains two ED elements and incorporates field correction for a 44 mm image circle.
Manufacturer model: Askar 80PHQ · Specifications checked against manufacturer data on 2026-11-04
