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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The corrector fits to the 2" receptacle of the focuser, it corrects the image field for astrophotography

  • Suitable for refractor telescopes up to 102 mm aperture or smaller (ED, apo, achromat... )
  • Connection telescope side 2" barrel with filter thread
  • Connection camera side M48x0.75 thread
  • Working distance from M48 thread to camera sensor is 55 mm
  • No shortening factor, the focal length of the refractor is not changed
125.21 €
Delivery date : 1-4 days

The corrector fits to the 2" receptacle of the focuser, it corrects the image field for astrophotography

  • Suitable for refractor telescopes up to 102 mm aperture or smaller (ED, apo, achromat... )
  • Connection telescope side 2" barrel with filter thread
  • Connection camera side T2 thread
  • Working distance from T2 thread to camera sensor is 55 mm
  • No shortening factor, the focal length of the refractor is not changed
125.21 €
Delivery date : 1-4 days
TS Glass Path Corrector for Binoviewers 1 1/4".
49.58 €
Delivery date : 1-4 days

The 4" corrector and reducer is designed for the large 180mm f/7 Triplet APO and allows astrophotography with full frame cameras at the highest level.

  • Improves the focal ratio from f/7 to f/5.6 and reduces the focal length of the apo to 1008 mm
  • Full illumination and correction up to full frame
  • Working distance is 55 mm from the M48 connection thread
  • The corrector is screwed to the focuser of the apo
1126.89 €
Delivery date : 1-2 weeks
Altair GPCAM & Hypercam 0.5x Reducer - Auto Guiding EAA Video Astronomy Solar
21.01 €
Delivery date : 3-4 weeks
Altair Starwave v3 0.8x Reduces exposure time and gives a larger, flatter field with various refractors.
142.86 €
Delivery date : 3-4 days
APM 2 inch coma-correcting telecentric 1.5x Barlow
415.97 € 390.76 €
Delivery date : 1-2 days
Adjusting flange for M63 reducer



66.39 €
Delivery date : 1-2 days
APM-Riccardi Adjustment Flange M82

66.39 € 49.58 €
Delivery date : 1-2 days
Our totally new comacorrecting 1 1/4" ED-Barlowlens - calculated from Gerd Güring - Germany.
158.82 € 147.06 €
Delivery date : 1-2 days
Our totally new comacorrecting 1 1/4" ED-Barlow Element - calculated from Gerd Güring - Germany.
105.04 €
Delivery date : 1-2 days
Our unique comacorrecting 1 1/4" ED Double Barlow - calculated by Gerd Güring - Germany.
247.90 €
Delivery date : 1-2 days