Off-Axis Guider for RCC Coma Corrector (RCC-OAG)

The prism size is 8x8mm

The OAG itself has only little focus ability: the prism can be moved up and down the range of ~3mm. But with additional parts you have more flexibility: The OAG has a 1 1/4" eyepiece holder with three screws. We do produce a 1 1/4" stopp ring to fit onto the eyepiece barrel - so that the eyepiece can be raised in the holder and locked tight. If the eyepiece needs to be lifted upward even more, we produce 1 1/4" extension tubes, to make the eyepiece barrel become longer. The extension tube threads into the eyepiece filter thread. 1.25" barrel: http://www.baader-planetarium.com/en/baader-fr-4-focusing-ring-collar-1%C2%BC%22-(t-2-part-30).html 1.25" extension: http://www.baader-planetarium.com/en/baader-dt-4--1%C2%BC%22---31.8mm-nosepiece-extension-(t-2-part-05).html