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SKU
SKW-SWA-ESPRIT120FRF
Skywatcher 0.77x Wide FOV Field Flattener / Reducer for Esprit 120
RRP: $749.99
Our Price
$649.95
Designed specifically for their Esprit 120 ED APO f/7 refractor optical tube, the Sky-Watcher 0.77x Focal Reducer / Flattener is an indispensable dual-purpose accessory for astrophotography and astroimaging. The field flattener corrects the inherent spherical aberration of curved lenses which, if left uncorrected, causes images to appear distorted at the edges of the field of view. As a focal reducer, it reduces the focal ratio of the scope which translates into wider fields of view with shorter exposure times—allowing you to capture more images in the same amount of time without sacrificing performance.
Key Features
- For Astrophotography/Astroimaging
- Virtually Eliminate Spherical Aberration
- Shortens Focal Ratio from f/7 to f/5.4
- Reduces Exposure Times by 68%
- Use with APS-C and Full Frame Cameras
- Large 34mm Imaging Circle
- 95mm Back-Focus
- Standard 2" Filter Threads
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