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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Altair GPCAM & Hypercam 0.5x Reducer - Auto Guiding EAA Video Astronomy Solar
21.01 €
This field flattener is designed to work with the Altair Astro 80mm F6 Super ED Triplet APO, and has an M48 rear thread adapter for connecting your DSLR or CCD camera.
100.00 €
APM 2 inch coma-correcting telecentric 1.5x Barlow
331.93 €
Adjusting flange for M63 reducer



66.39 €
APM-Riccardi Adjustment Flange M82

66.39 €
Our totally new comacorrecting 1 1/4" ED-Barlowlens - calculated from Gerd Güring - Germany.
142.02 €
Our totally new comacorrecting 1 1/4" ED-Barlow Element - calculated from Gerd Güring - Germany.
96.64 €
Our unique comacorrecting 1 1/4" ED Double Barlow - calculated by Gerd Güring - Germany.
222.69 €
This adapter allows to install the M63 APM-Riccardi Apo reducer inside the focuser barrel of different 3" focuser
45.38 €
Our new APM-Riccardi Apo-Reducer with reducing factor 0.75 x with M63 thread on both sides.
377.31 € 357.98 €
Our new APM-Riccardi Apo-Reducer with reducing factor 0.75 x with M82 thread on both sides.
461.34 €
The all new APM-Riccardi Universal Apo Flattner 1.0x Model 1 for Apo Telescopes.
377.31 €