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RCC I, Rowe Coma Corrector

Baader PlanetariumSKU: RCC-I

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Extension: Baader VariLock 46, Variable Length T-2 Extension tube 29-46mm, with graduated length scale

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$369.98

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Description

The RCC I is designed to correct Coma in fast Newtonian imaging systems. It provides a long back-focus of 91.5 mm measured from the T-2-thread, enabling the use of Off-Axis Guiders, Adaptive Optics and Filter Wheels. Autoguiding can be done easily with the RCC, an RCC Off Axis Guider and an Autoguiding Camera.

The RCC works from f/3.5 to f/6 - it is perfect on f/4

reproduction scale is 1:1 - in contrast to many other coma correctors, the RCC is no Barlow lens which rely on a magnification to make the larger back-focus to the sensor possible

The RCC is the only coma corrector which gives you enough back-focus for filter wheels or other accessories without changing the focal ratio

To attach the RCC directly to a camera (without an Off-Axis-Guider), we recommend the VariLock 46 T-2 Extension (# 2956946, T-2 part-no. #25V). It has got not only a graduated mm-scale, but also a marking at 36.5mm, to show you the perfect working distance for a DSLR with T-2-adapter. Each air/glass-surface of the triplet RCC optical system is coated with our Phantom Group Coating (R) for the best-possible transmission.

You can remove the stopper ring to place the RCC deeper inside of your focuser.

RCC I, Rowe Coma Corrector