This telescope will be checked, measured and adjusted if necessary before delivery. The focuser will be calibrated.

Examples of our test protocols: Testaufnahmen
How we calibrate: Über uns
 

ASKAR FRA300 Pro 60mm f/5 Quintuplet Flatfield APO Astrograph Refractor

The ASKAR APO 60 mm f/5 Quintuplet Apochromat from Sharpstar is optimized for large field astrophotography with high resolution cameras

♦ Aperture 60 mm

♦ Focal Length 300 mm / F-ratio f/5

♦ 5-element quintuplet design with corrector in tube

♦ ED glass in the lens for very good correction of color error

♦ 44 mm image circle with full illumination and correction

♦ Working distance optimized for photography - e.g. with cameras with 55mm flange focal distance

♦ Stable 2.5" RAP focuser with micro reduction and 360° rotation

♦ M54x0.75 , M48x0.75 and T2 adapter included for easy camera adaption

♦ Internal thread for 2" filter available

♦ Flexible GP/EQ5 level prism rail with photo tripod connection and carrying handle with flexible oblong hole

♦ Viewfinder shoe for standard viewfinder holder

ASKAR FRA 300 60 mm f/5 Quintuplet-Astrograph

ASKAR is a line of selected telescopes for astrophotography. With these telescopes, great emphasis is placed on optical, but also mechanical quality. The product designation FRA stands for a refractor telescope with integrated corrector element for a flat and corrected field of view. The FRA series is mainly used for astrophotography.

The ASKAR FRA300 is a 5-element apochromat based on Petzval with 300 mm focal length, f/5 and 60 mm aperture. There are 2 ED lenses built into the lens for good color aberration correction. The apo is corrected for cameras up to full frame.

The exchange cap also provides good protection against stray light and is retractable. The large focuser holds even heavy cameras and allows precise focusing due to microfocusing. T2, M48 and M54 threads are available for connections. The working distance is optimized for all common cameras, from system to DSLR to astro cameras (CMOS and CCD).

Aperture:	60 mm
Focal length:	300 mm
F-ratio:	f/5
Telescope type:	5-Element (Quintuplet) Apo with 2-element ED lens
Transport length:	300 mm
Weight:	2 kg
Connection camera side:	M76x1 M54x0.75 male thread, M48x0.75 male thread and T2 male thread
Adjustment range of focuser:	20 mm
Filter thread:	2" filter thread (M48x0.75) is integrated in the camera adapter (accessible after unscrewing the adapter)
Working distance:	45-65 mm from the T2/M48/M54 connection thread and 55-75 mm from the M76x1 external thread
Dew shield diameter:	92 mm

♦ Telescope
♦ CNC pipe clamps
♦ GP/EQ5 Level Prism Rail
♦ Handle
♦ Photo adapter to M48, M54 and T2
♦ Viewfinder shoe (mounted)