About this product
Part Number: RC2508
SharpStar 2.5" 0.8x Full Frame Reducer for f/6-f/9 RC Telescopes
The RC2508 0.8x Focal Reducer/Corrector offers full frame imaging with Ritchey Chretien telescopes between f/6 and f/9 focal ratios.
Featuring an M78x1 threaded front end for connection directly to various SharpStar focusers and an M74x1 threaded connection camera side, the RC2508 Reducer also ships with an M48x0.75 Camera Adaptor that provides for standard camera connectivity with 55mm of back focus distance.
With adaptation this reducer is ideal for use with the Stella Lyra 8" and 10" F8 Ritchey Chretien Instruments converting them into F6.4 fast Astrographs with full format camera coverage and a fully corrected 44mm image circle.
- Suitable for f/6 to f/9 Ritchey Chretien Telescopes
- 0.8x Reducer
- 44mm Fully illuminated image circle
- Fully multi-coated, air-spaced triplet optics
- 95mm Outer diameter
- 55mm backfocus from M48 Adapter
- Total Length: 60.5mm (excluding M48 thread)
- Weighs only 0.4kg
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