Askar 60F Flat-Field Refractor
404.00
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Delivery times depending on the shipping method: Switzerland: 2 to 3 days; Europe: 7 to 10 days.
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Askar 60F Flat-Field Refractor
The Askar 60F is a 60 mm quadruplet refractor with a built-in field flattener, compact and lightweight, ready for astrophotography and visual observation without requiring back-focus calculations.
Askar 60F Flat-Field Refractor
Description
The Askar 60F is an OTA featuring a 60 mm aperture and 408 mm focal length with a native focal ratio of f/6.8. Its quadruplet air-spaced optical design includes one ED glass element, effectively reducing chromatic aberration. It provides a 44 mm full-frame image circle with excellent edge performance.
With its built-in field flattener, no additional corrector or back-focus calculation is needed. Simply attach the camera, focus, and you are ready to capture images.
Weighing only 2.5 kg (3 kg including rings and dovetail plate), the 60F is highly portable for visual or photographic use. It includes a photographic extension tube with a built-in 2" filter thread and M48×0.75 / M54×0.75 adapters, ensuring compatibility with DSLRs and astronomy cameras.
The retractable dew shield improves compactness, and the internal matting felt further reduces stray light. The blue-and-white exterior, CNC machining, and refined paintwork highlight its high-quality build.
A finder base slot is integrated into the handle, and two additional finder bases on the focuser provide multiple accessory mounting options without disassembly.
The 2.4" dual-speed rack-and-pinion focuser offers 1:10 fine adjustment, with an anti-slip fine-tuning knob and a 360° rotator with engraved scale.
The 230 mm Vixen-style dovetail plate includes 1/4" and 3/8" threaded holes for direct tripod attachment.
Combining professional-grade performance with an entry-level price, the Askar 60F is an ideal companion for travel, visual observing, and astrophotography.
Technical specifications
Aperture size: 60 mm
Focal length: 408 mm
Focal ratio: f/6.8
Objective lens: Quadruplet air-spaced APO with ED glass
Image circle: 44 mm
Maximum accessory connection (focuser retracted):
Imaging: 81 mm (M48×0.75 base), 99 mm (M54×0.75 base)
Visual: 120 mm (1.25"), 130 mm (2")
Minimum accessory connection (focuser extended):
Imaging: 31 mm (M48×0.75 base), 49 mm (M54×0.75 base)
Visual: 70 mm (1.25"), 80 mm (2")
Total length:
289 mm (dew shield retracted with 1.25" adapter)
323 mm (dew shield extended with 1.25" adapter)
336 mm (dew shield retracted with photographic adapter)
369 mm (dew shield extended with photographic adapter)
Focuser travel length: 50 mm
Net weight: 2.36 kg
Gross weight (with tube rings and dovetail plate): 2.86 kg
Rear thread type: M64×0.75–M54×0.75, M54×0.75–M54×0.75, M54×0.75–M48×0.75 (with M48×0.75 filter thread)
Standard package items: 60F OTA, tube rings, handle, 230 mm Vixen dovetail plate, photographic adapter set
Askar 60F Flat-Field
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Askar 60F Flat-Field Refractor
The Askar 60F is a 60 mm quadruplet refractor with a built-in field flattener, compact and lightweight, ready for astrophotography and visual observation without requiring back-focus calculations.