Meade f/6.3 Focal Reducer/Field Flattener
|Meade f/6.3 focal reducer is used when imaging with f/10 Schmidt-Cassegrains to increase the effective field of view. Improves edge-of-field correction and reduces exposure times by close to 50%. Threads into rear cell of any Meade or Celestron Schmidt-Cassegrain telescope. Is not recommended for Celestron EdgeHD models. |
Reduces the telescope's focal ratio by a factor of 0.63: f/10 telescopes are converted to f/6.3. Simultaneously, the 41mm-diameter lens system helps flatten the field of Schmidt-Cassegrain models, significantly improving edge-of-field correction. This handy accessory produces an actual field diameter of 1.5" at the sensor or film plane.