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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Spacers (2mm, 1mm, 0.5mm) in order to increase the optical path between CCD camera and CTU by G. Neumann
19.90 €
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.
119.00 €
Adjusting flange for M63 reducer



79.00 €
APM-Riccardi Adjustment Flange M82

79.00 €
Our totally new comacorrecting 1 1/4" ED-Barlowlens - calculated from Gerd Güring - Germany.
169.00 €
Our totally new comacorrecting 1 1/4" ED-Barlow Element - calculated from Gerd Güring - Germany.
115.00 €
This adapter allows to install the M63 APM-Riccardi Apo reducer inside the focuser barrel of different 3" focuser
54.00 €
Our new APM-Riccardi Apo-Reducer with reducing factor 0.75 x with M63 thread on both sides.
449.00 €
Our new APM-Riccardi Apo-Reducer with reducing factor 0.75 x with M82 thread on both sides.
549.00 €
The all new APM-Riccardi Universal Apo Flattner 1.0x Model 1 for Apo Telescopes.
449.00 €
The all new APM-Riccardi Universal Apo Flattner 1.0x Model 2 for Apo Telescopes.
449.00 €
Fieldflattener for ED Apos by Explore Scientific.
143.00 €