Astrograph Refractors

Astrograph Refractors

Astrophotographically optimized lens telescopes (astrographs) consist either of primary optics, combined with a flattener or reducer, or of multi-part (4 to 6 lens) optical designs that enable optimal geometric and chromatic correction. The focal ratio is very short (mostly f / 3.5 - f / 5.6), which shortens the exposure times.

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The 130 mm APM - LZOS 3-lenser SuperED in the new inexpensive special package with 3.7" APM Focuser.
6990.00 €
Delivery date : 1-4 days (as from Availability)
Availability acc. to manufacturer :
30 October 2024

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
 
 

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 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
2319.00 €
Delivery date : 1-2 weeks
 
 
FPL53 Triplet Objective / Doublet Field Flattener for maximum sharpness in the field in a set with the new small APM-Riccardi Apo-Reducer.
3560.00 €
Delivery date : 4-6 months
 
 
A large Apo - optional doublet field flattener for maximum sharpness in the field.
3435.00 €
Delivery date : 4-6 months
 
 
FPL53 triplet objective / doublet field flattener for maximum sharpness in the field in a set with the new small APM-Riccardi Apo-Reducer.
6890.00 €
Delivery date : 1-6 weeks
 
 
A powerful APO - optional with original flattener for maximum sharpness over the field.
6559.00 €
Delivery date : 1-4 days
 
 
FPL53 triplet objective / doublet field flattener for maximum sharpness in the field in a set with the new large APM-Riccardi Apo-Reducer.
6990.00 €
Delivery date : 1-6 weeks
 
 
3-lens Super ED Apo Astrograph for astrophotography.
2845.00 €
Delivery date : 1-4 days