Sharpstar Optics

Sharpstar Optics, founded in 2000, is specialized in research, development and production in the field of astronomy. Sharpstar and Askar are the two of the company' s brands dedicated to providing customers with high-quality products and services. In addition to a series of high-quality astronomical telescopes widely praised by the market, it also has a strong OEM background for more than 10 years.
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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.
2749.00 €
Delivery date : 1-4 days
 
 

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
3869.00 €
Delivery date : 1-4 days
 
 
Askar has created with the FMA135 a compact triplet APO refractor with many photographic and visual possibilities
  • Focal length 135 mm / focal ratio f/4.5
  • Triplet ED lens with 30 mm aperture
  • 3-element corrector for perfect field flattening
  • Working distance 55 mm from the T2 threaded mount
  • With just a few hand movements the telephoto lens becomes a mini guiding scope or a compact spotting scope for observation
  • The photographic field of view is designed up to APS-C format
  • Precise helical focuser on the lens for precise focusing - with lock
  • Can be easily attached to the telescope instead of the finder - fits all common finder shoes
  • Fits on any ball head - ideal also for mobile astrophotography with photo trackers like the Skywatcher Adventurer Mini or iOptron Skytracker
 
395.00 €
Delivery date : 1-4 days
 
 
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.

  • 151 mm aperture, 1057 mm focal length, f/7
  • Self flattening design with two ED elements
  • 3.4" dual speed focuser
  • 2" and 1.25" receptacles, M86 thread
  • Retractable dew shield
  • Losmandy style dovetail bar
  • Handle
  • Vixen type finder base
5317.00 €
Delivery date : 1-2 weeks
 
 

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
429.00 €
Delivery date : 1-4 days
 
 

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
6999.00 € 6099.00 €
Delivery date : 1-2 weeks
 
 

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
1247.00 €
Delivery date : 1-4 days
 
 

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.
1999.00 €
Delivery date : 1-4 days
 
 

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
1199.00 €
Delivery date : 1-4 days
 
 

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
1349.00 €
Delivery date : 1-2 weeks
 
 

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
2449.00 €
Delivery date : 1-2 weeks
 
 

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
2845.00 €
Delivery date : 1-4 days