Sharpstar Optics

The Askar 185APO is an apo refractor with 185 mm aperture, 1295 mm focal length and a focal ratio of 1:7 with many practical features.

• Aperture 185 mm - Focal length 1295 mm - Focal ratio f/7
• Triplet objective with one ED element
• Stable 3,5" RAP focuser with micro reduction, 360° rotation connection and 100 mm adjustment travel
• Sufficient working distance for observation with 2" accessories and for photography
• Flattener and two reducers available (0.8x)
• CNC clamps with dovetail bar (Losmandy) and carrying handle
• Two finder shoes

This long focal ratio flatfield apochromat support 60 mm image circle and does not need calculations for backfocus. If the image is sharp, the field is flat.

• 130 mm aperture, 1000 mm focal length, f/7.7
• Petzval like, self flattening design with two ED elements
• 3.4" dual speed focuser
• 2" and 1.25" receptacles, M68, M54 and M48 threads
• Retractable dew shield
• Losmandy style dovetail bar
• Handle
• Vixen type finder base

With the FRA600 F/5.6 quintuplet astrograph, Askar has created a pure-color apochromat for astrophotography with large sensors.

• Aperture 108 mm / 4.3"
• Focal length 600 mm
• Focal ratio f/5.6
• 5-element design - the 2-element corrector is permanently installed in the tube
• 66 mm image circle with full illumination and correction
• 140 mm working distance for observation with 2" star diagonal
• Long transition adapter for photography to M48x0.75 with 2" filter thread included
• Rugged 4" RAP focuser with dual speed reduction and 360° rotation
• Losmandy style dovetail bar
• Flexible tube rings with carrying handle and lateral threads for individual adaptations
• Finder shoe for standard finder bracket
• Each FRA600 comes with an inspection checklist from the manufacturer and is also tested on our optical bench

The 107PHQ is a transportable APO refractor for astrophotography with corrected field of view up to full frame sensor and for observation up to the highest magnification range.

• Aperture 107 mm - focal length 740 mm - focal ratio f/7
• 4-element Petzval system with color-correct triplet objective and a corrector lens built into the optical tube
• Stable 3.4" RAP focuser with micro-reduction and 360° rotation - adjustment range 110 mm
• Sufficient working distance for observing with 2" accessories and for photography
• Besides 1.25" and 2" the apo offers M48, M54, M68 and M86 threads for screw adaptions
• 44 mm image circle with full illumination and correction allow the use of large sensors with high resolution
• CNC tube rings with Vixen/EQ5 style dovetail bar and carrying handle
• Finder shoe for standard finder and mini guiding telescopes available
• High quality carrying case for optimal protection of the telescope
• Each Quadruplet Apo is inspected and its optics tested before shipping - you get an optimally adjusted telescope for successful photography and observation from the very beginning.

The ASKAR FRA 500/5.6 APO quintuplet apochromat from Sharpstar is optimized for astrophotography with high resolution cameras

• Aperture 90 mm
• Focal length 500 mm / focal ratio f/5.6
• 5-element quintuplet design with corrector in tube
• Two ED glasses in the triplet objective for very good correction of the chromatic aberration
• 55 mm image circle with full illumination and correction
• 158 mm maximum working distance from drawtube with all adapters for photography and observation
• Stable 3.5" dual-speed RAP focuser with 360° rotation
• Adapters to M68x1, M54x0,75, M52x0,75 and M48x0,75 are included in delivery
• Starting with the M48 thread, you have comfortable working distance for all common astro cameras, DSLR and system cameras
• Flexible Losmandy style dovetail bar with photo tripod connection and carrying handle with flexible oblong hole
• Finder shoe for standard finder holders
• Including inspection check list of the manufacturer

The 80PHQ is a very transportable APO refractor for astrophotography with corrected field of view up to full frame format and for observing up to the highest magnification range.

• Aperture 80 mm / focal length 600 mm / focal ratio f/7.5
• 4-element Petzval system with color clean triplet objective and one corrector lens built into the tube
• Stable 3" RAP focuser with dual speed and 360° rotation
• Sufficient working distance for observation with 2" accessories
• Suitable photo adapters are included in delivery
• Illuminated image circle with very good correction up to full frame format
• CNC tube rings with Vixen style EQ5 dovetail bars and carrying handle
• Finder shoe for standard finder and mini guiding telescopes available
• High quality carrying case for optimal protection of the telescope
• Each Quadruplet Apo is inspected upon receipt, you will receive an optimally adjusted telescope for successful photography and observation from the very beginning.

The ASKAR APO 72 mm f/5.6 quintuplet apochromat from Sharpstar is optimized for astrophotography with high resolution cameras

• Aperture 72 mm
• Focal length 400 mm / focal ratio f/5.6
• 5-element quintuplet design with corrector in tube
• Two ED glasses in the objective for very good correction of the chromatic aberration
• 44 mm image circle with full illumination and correction
• 140 mm working distance for visual observation or focal length reduction
• Stable 3" dual-speed RAP focuser with 360° rotation
• 2" and 1.25" receptacles as well as M68x1 external thread for screw adaptations
• Long adapter from M68 to M48x0.75 camera connection is included in delivery (with 2" filterthrad)
• Flexible GP/EQ5 style dovetail bar with photo tripod connection and carrying handle with flexible slotted hole
• Finder shoe for standard finder holder
• Including inspection check list of the manufacturer

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

• aperture 60 mm
• focal length 300 mm / focal ratio f/5
• 5-element quintuplet design with corrector in the tube
• ED glass in the lens for very good correction of chromatic aberration
• 44 mm image circle with full illumination and correction
• Working distance optimized for photography - e.g. with cameras with 55mm flange focal length
• 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 Dovetail bar with photo tripod connection and carrying handle with flexible oblong hole
• Viewfinder shoe for standard viewfinder bracket

The very good correction and the self-flattening design make this small telescope a compact photo machine.

• Aperture 65 mm / focal length 416 mm / focal ratio f/6.4
• 5-element system with color clean triplet objective and two corrector lenses built into the tube
• Stable 2.5" RAP focuser with dual speed and 360° rotation
• Sufficient working distance for observation with 2" accessories
• Suitable photo adapters are included in delivery
• Illuminated image circle with very good correction up to full frame format
• CNC tube rings with Vixen style EQ5 dovetail bars and carrying handle
• Finder shoe for standard finder and mini guiding telescopes available

With the FMA180 Askar has created a triplet APO refractor with unique visual and photographic applications

• With just a few simple steps, the APO telephoto lens can be transformed into a compact astronomical telescope, a guide scope or a powerful spotting scope for landscape observation.
• Aperture 40 mm
• Air-spaced triplet ED lens for almost pure color image
• Photographic focal length 180 mm (with corrector) - focal ratio f/4.5
• 2" filter thread in front of the objective for nebula filters
• Focal length for observation 220 mm
• The photographic field of view is up to full frame size
• Precise helical focuser on the lens for accurate focusing - with locking mechanism
  T2 camera connection with 55 mm working distance (when used as telephoto lens)
• Weight only 395 grams
• Can easily be attached to the telescope instead of the finder
• Fits on any ball head - also ideal for mobile astrophotography with photo trackers like the Sywatcher Adventurer
• Ideally suitable also as mini guide telescope
• The FMA180 can be converted into a compact spotting scope for observation in just a few steps