Flattener / Reducer / Correctors

Flattener / Reducer / Correctors

Corrective optics are a very important component, especially in astrophotography. They turn almost every refractor, Newtonian or other telescope into an astrograph. They flatten the image field, shorten the focal length or correct system-related image errors.

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Optec Lepus HD Telecompressor for Celestron Edge HD 11.
390.00 €
Estimated delivery time : 1-4 days
 
 

This reducer, when used with the 65PHQ astrograph, can effectively shorten the exposure time and significantly increase the field of view.

  • specially designed for the 65PHQ
  • reduces the focal length by 0.75x
  • four-lens system
  • camera-side threads M54 and M48
  • 65 or 55 mm backfocus
 
389.00 €
Estimated delivery time : 1-4 days
 
 
The original Field Flattener for the Skywatcher Esprit 150ED.

415.00 € 383.87 €
Estimated delivery time : 1-4 days
 
 
Optec Lepus HD Telecompressor for Celestron Edge HD 9.25.
382.00 €
Estimated delivery time : 1-4 days
 
 

The TS Photoline 1.0x full-frame flattener corrects the field of view of refractor telescopes and allows astrophotography with perfect edge sharpness

  • Full illumination and correction of the image field up to 55 mm sensor diameter
  • Factor 1.0x, the focal length remains unchanged.
  • Suitable for all refractor telescopes with focusers from 2.5" upwards
  • No reflections and ghost images due to high quality coating and anti-reflection thread
  • Connections at the telescope side M68x1 male thread and M63x1 male thread (reducing adapter)
  • Connections at the camera side M48x0.75 male thread with adaption for 2" filter
  • Practical working distance of 55 mm from M48 thread (can be extended to 88 mm)
  • Refractors require a working distance of at least 145 mm from the M68 or M63 female thread.
369.00 €
Estimated delivery time : 1-4 days
 
 
The Reducer HD for telescopes and full-frame DSLR cameras offers above-average contrast
349.00 €
Estimated delivery time : 3-4 days
 
 
HR Coma Corrector 2" by Explore Scientific.
349.00 €
Estimated delivery time : 3-4 days
 
 
TS Photoline 0.8x Focal Reducer and Corrector for Refractors from 102 mm Aperture
The corrector increases the speed of your refractor telescope and reduces the focal length for a larger field.
349.00 €
Estimated delivery time : 1-4 days
 
 
Suitable reducer for the Omegon 61mm ED APO
339.00 €
Estimated delivery time : 1-4 days
 
 
The all new Skywatcher Newtonian Coma Corrector.
365.00 € 337.63 €
Estimated delivery time : 1-4 days
 
 
TS 1.0x Photoline full-frame corrector for APO and ED refractor telescopes from 80 mm to 155 mm aperture and larger with integrated fine tuning - no more adapter battle!
335.00 €
Estimated delivery time : 1-4 weeks
 
 
Perfectly suitable for Newtonians with focal ratios of f/4, very good results also from f/3.5-f/6
329.00 €
Estimated delivery time : 1-4 days
 
 
The new original Field Flattener for the Skywatcher Esprit 120ED.

349.00 € 322.82 €
Estimated delivery time : 1-4 days (as from Availability)
Availability acc. to manufacturer :
Jul 06 2025
Optec Lepus Telecompressor for Meade ACF.
309.00 €
Estimated delivery time : 1-4 days
 
 

New ! Adjustable Flat61 for William Optics ZS61 II Telescopes

  • Compensates for field curvature and enables sharp images at the edges
  • Camera can be mounted directly with M48 camera adapter
  • Suitable for refractors from f/5 to f/7
  • Distance to chip plane is variably adjustable
309.00 €
Estimated delivery time : 1-4 days
 
 

New ! Adjustable Flat73A for William Optics f/5 to f/7 telescopes

  • Universally applicable for telescopes between f/5 and f/7
  • Focusing travel is adjustable
  • M63 thread on telescope side
  • M48 thread on camera side
  • Integrated M48 filter thread
309.00 €
Estimated delivery time : on request
 
 
?High quality SD field flattener HD kit for the Vixen ED and SD refractor telescopes
299.00 €
Estimated delivery time : 3-4 days
 
 

The Photoline corrector is optimized for the TS 85 mm f/6 APO and ED refractor telescopes and corrects the field of view for astrophotography up to full frame format.

  • Shortening factor 0.92x
  • Connection telescope side: M63x1 male thread
  • Connection camera side: M48x0.75 male thread
  • Working distance: 55 mm from the connection thread
  • ED design for good correction on axis and in the field
  • The corrector is optimized for all refractors with 85 mm aperture and f/6, but it will also give good results with similar telescopes.
299.00 €
Estimated delivery time : 1-4 days
 
 
The ASKAR full-frame 0.7x focal length reducer improves the FRA400´s and FRA500´s focal ratio from f/5.6 to f/3.9, halving the exposure time
299.00 €
Estimated delivery time : 1-4 days
 
 
TS Photoline 0.8x Focal Reducer and Corrector for Refractors up to 102 mm Aperture
The corrector increases the speed of your refractor telescope and reduces the focal length for a larger field.
299.00 €
Estimated delivery time : 1-4 weeks
 
 

The corrector is optimized for the TS 96 mm f/6 APO and ED refractor telescopes and corrects the field of view for astrophotography up to full frame format.

  • Shortening factor 0.92x
  • Connection telescope side: M63x1 male thread and M70x1 male thread
  • Connection camera side: M48x0.75 male thread
  • Working distance: 55 mm from the connection thread
  • ED design for good correction on axis and in the field
  • The corrector is optimized for all refractors with 96 mm aperture and f/6, but it will also give good results with similar telescopes.
299.00 €
Estimated delivery time : 1-4 days
 
 
This flattener corrects the field of ED and APO refractors of at least 500 mm focal length for astrophotography without changing the focal length.
298.00 €
Estimated delivery time : 1-4 weeks
 
 
Two-element design incorporating one ED element. Reduces the standard focal length of the Evolux-62ED by a factor of 0.9x ...
319.00 € 295.08 €
Estimated delivery time : 3-4 days
 
 
Two-element design incorporating one ED element. Reduces the standard focal length of the Evolux-22ED by a factor of 0.9x ...
319.00 € 295.08 €
Estimated delivery time : 3-4 days