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The Askar 160APO has a 30% larger effective aperture area than the 140APO, and the limiting magnitude can reach 12.79°.
160mm aperture
1120mm focal length
F7 native focal ratio
Triplet air-spaced lens design Including one piece of ED glass, also known as low-dispersion glass, is a type of optical glass specifically designed to reduce chromatic aberration.
The Askar APO series employs special optical designs and multiple lens elements to correct chromatic aberration, naturally providing higher-quality object details and color accuracy.
In the refractor's element structure, increasing the number of lens elements and designing lens combinations can effectively improve chromatic aberration correction. However, this also means increased production costs and design complexity.
Losmandy dovetail plate The length of the dovetail plate has been extended to 400mm, which is more convenient for balancing on the mount. The rear lens tube has an integrated retractable design to strengthen the overall stability and ensure that the optical axis will not be affected when the lens tube is stretched, thus guaranteeing the quality of the image. The retractable part also features a rudder-type locking ring that makes it easy to loosen or tighten.
Extended 316mm handle Special slot design, can be a base for installing a finder scope.
Portability As a large aperture, long focal ratio OTA the shortest overall length is only 883mm the net weight is 11.4kg, and the gross weight is 13.6kg(including the handle, tube ring, and dovetail plate).
Dual-speed rack and pinion large 3.5-inch rigid focuser It can be compatible with most motorized focusers on the market. There is a high-precision scale printed on the 100mm focusing travel. There are two finder bases on both sides of the focuser, provides additional mounting positions for other astronomical accessories.
The rear of the focuser features a 360° high-precision big rotator, along with precise scales for convenient adjustment and saving of rotation angles, enabling precise rotation. It is also equipped with an enlarged rotator locking screw that can be easily secured even under high loads.
Visual observation The focuser interface at the rear comes with a 1.25"/2" adapter, so the 160APO can easily achieve focus when connected to 1.25" or 2"diag-°flats or various eyepieces. Because of the retractable lens tube design, it can also be attached to a binoviewer for visual observation.
Instruction of using the 160APO retractable lens tube ( for eyepiece observation, 1.0x flattener, and 0.8x reducer)
The Locking Screw Position Diagram
160APO EAF（optional） Installation
Technical Specifications
Parameters
Aperture size
160mm
Focal length
1120mm
Focal ratio
f/7
Objective lens
Triplet air-spaced APO (including one ED glass)
Total length
883mm(when the dew shield is contracted) 996mm(when the dew shield is stretched)
The length of the rear retractable lens tube
115mm
OTA weight
11.4kg
Gross weight（including tube ring and dovetail plate）
13.6kg
Rear-end thread type
2"/1.25" visual adapters
Standard package items
an 160APO OTA, a pair of tube rings, a handle, an Askar 400mm Losmandy dovetail plate, an aluminum box，a manual
