TS 3" Field Corrector for RC Astrographs - 68 mm corrected & illuminated field
... exceptional results even with full size sensors - the focal length is not affected
... direct M48 connection for DSLR camerasThis Corrector for RC - Ritchey Chretien Telescopes is optimized for f/8 telescopes.
The RC should be equipped with a 2.5" or 3" focuser. It corrects for the field curvature without changing the focal length. The large free aperture of 68 mm allows illumination of full size sensors without vignetting.The Corrector can be mounted directly to focusers with female M92 x 1 thread:
... we offer various adapters custommade to your RC telescopeScope of delivery:
The corrector comes with a M48 adapter. Using a M48 bajonet ring, you can attach DSLR camera directly and achieve good results. If using full size sensors, it might be necessary to fine tune the distance with spacer rings between corrector and camera.Recommended working distances for individual adaptions:
The camera side thread is M80 x 1 - the distance from the M80 x 1 thread to the camera sensor should be 103 mm.TSRCFLAT3 connection threads:
-- Telescope side: M92 x 1 male / length: 6.5 mm
-- Cameraside: M80 x 1 male / length: 7.5 mm
-- Mechanical length without adapter and connection threads: 28 mmDelivery contains:
TS 3" Flattener for RC Telescopes with f/8.