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 €
Delivery date : 3-4 weeks
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 €
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 €
Delivery date : 1-2 days
Adjusting flange for M63 reducer



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

66.39 €
Delivery date : 1-2 days
Our totally new comacorrecting 1 1/4" ED-Barlowlens - calculated from Gerd Güring - Germany.
158.82 €
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
This adapter allows to install the M63 APM-Riccardi Apo reducer inside the focuser barrel of different 3" focuser
45.38 €
Delivery date : 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
251.26 €
Delivery date : 1-4 days
Baader Hyperion 2.25x Barlow lens w/ 1.25" and T2 connection
105.04 €
Delivery date : 1-2 weeks