Askar 60F Flat-Field Astrograph: a quadruplet flat-field astrograph, light and compact, offered at a very affordable price and which can be used for visual observation and astrophotography.
The Askar 60F is a refracting astrograph with an aperture of 60 mm, a focal length of 408 mm and a native focal ratio of F/6.8, designed for astronomy enthusiasts who prioritise portability and high image quality.
The Askar 60F features a four-element optical design (three front lenses and one rear lens), one of which is ED glass, effectively reducing chromatic aberration. The Askar 60F supports a 44-mm image circle, suitable for covering sensors up to full-frame format, offering pin-point star images.
Thanks to its pre-flattened optical scheme, the Askar 60F astrograph eliminates the need for an additional field flattener and complex back-focus calculations. Simply connect the camera, focus and you are ready to capture images, making astrophotography easier and more enjoyable!
The Askar 60F astrograph weighs only 2.5 kg and the gross weight is 3 kg (including tube rings and dovetail plate). It is compact and lightweight, making it easy to transport for observation or astrophotography, wherever your exploration takes you.
The Askar 60F is designed for both visual observation and photography. It comes with a photographic extension tube with built-in 2" filter thread and M48×0.75 and M54×0.75 adapters, making it compatible with digital SLR and astronomical cameras for quick connection and instant shooting.
The mechanical design of the Askar 60F astrograph minimises hidden user costs and ensures a smooth experience.
The Askar 60F is equipped with a retractable lens hood, which further reduces the overall length and improves portability. The inside of the tube is lined with matt felt to better eliminate stray light, while the exterior sports an elegant blue and white colour scheme with CNC machining and high-quality paint.
On the handle of the Askar 60F astrograph is a housing for the finder base. In addition, there are two finder bases on both sides of the focuser, which not only eliminate the need to disassemble it when changing the position of the scope, but also provide additional mounting positions for other astronomical accessories.
As far as the focuser is concerned, the Askar 60F is equipped with a sturdy focuser with a 2.4" double-speed rack-and-pinion mechanism, with 1:10 gearing. The gear knob is knurled to ensure a good grip, while the rear of the focuser features a rotator with a 360° scale for precise angle adjustment.
The dovetail plate is a 230 mm long standard Vixen/GP plate with 1/4" and 3/8" screw holes, allowing direct connection to a tripod.
Offering professional-level performance at an entry-level price, the Askar 60F astrograph is the ideal companion for exploring the cosmos and capturing the beauty of nature. Travel light, discover more: start your journey with the Askar 60F!
Specifications
Diameter: 60 mm.
Focal lenght: 408 mm.
Focal ratio: F/6.8.
Optical design: air-spaced APO quadruplet, with an ED lens.
Image circle: 44 mm.
Back-focus: in visual configuration with 2" eyepiece holder installed 130 mm (120 mm with the reduction from 2" to 1.25" installed); in photographic configuration with adapter installed 81 mm from the M48x0.75 thread stop and 99 mm from the M54x0.75 thread stop.
Focuser travel: 50 mm.
Total length: in visual configuration with 1.25" eyepiece holder installed, 289 mm with dew-shield closed and 323 mm with hood fully extended; in photographic configuration with adapter installed, 336 mm with dew-shield fully closed and 369 mm with dew-shield fully extended.
Weight: 2.36 kg optical tube only, 2.86 kg with dovetail bar rings.
Camera adapter: included, available camera-side threads: M48x0.75, M54x0.75 and M64x0.75. The adapter has an M48x0.75 internal thread for mounting standard 2" mounted filters.
In the box: Askar 60F astrograph, pair of support rings, Vixen/GP type dovetail bar, set of photographic adapters.
