Apertura 0.67x Ritchey-Chrétien Focal Reducer
Key specifications
| Accessory type | Flattener/Reducer |
|---|---|
| Back focus | 55 mm |
| Factor | 0.67 × |
All specifications
| Interface | 2" barrel or M56 collar in; M48 out; M48x0.75 filter cell |
|---|---|
| Compatible with | Ritchey-Chrétien telescopes; designed for Apertura CarbonStar 6" and 8" RC; up to APS-C |
About
A 2" 0.67x focal reducer for Ritchey-Chrétiens, designed around the CarbonStar 6" and 8" RCs: 2" barrel plus an M56 collar to thread onto their focusers, an M48 output with 55 mm back focus, an M48x0.75 filter cell in the nose, and an image circle covering APS-C.
Where to buy
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