MEADE SERIES 4000 F/6.3 FOCAL REDUCER / FIELD FLATTENER F/ SCT TELESCOPE
Fits all Meade SCT’s telescopes. 8”, 10” 12” SCT and all models. Schmidt-Cassegrain.
Note: May fit other brands, but no guarantee. *Made in Japan-superior to similar Chinese made versions
The Meade f/6.3 Focal Reducer/Field Flattener (4-element, 41mm diameter, multicoated lens elements) hreads on to the rear cell of any Meade SCT telescope or to other Schmidt-Cassegrain telescope brands. It reduces the telescopes focal ratio by a factor of 0.63. With this accessory, f/10 telescopes are converted to f/6.3 and f/ 6.3 telescopes are converted to f/4.
Simultaneously, it helps to flatten the field, significantly improving edge-of-field corrections. The f/6.3 Meade Focal Reducer enables a reduction of photographic exposure times by about 50%, while producing an actual field diameter of 1.5" at the film plane. The f/6.3 Focal Reducer duplicates the rear cell thread of the telescope, allowing you to attach all standard rear cell visual and photographic accessories. Has a standard male SCT thread (2" outside diameter x 24 TPI) on one side and a standard SCT female thread on the other.
Filed under: Eyepieces & Accessories