Sky-Watcher
Sky-Watcher 0.77x Reducer/Flattener for Esprit 120
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- SKU:
- SKW-S20209
Description
Sky-Watcher 0.77x Reducer/Flattener for Esprit 120
- 34mm fully illuminated field but can handle full frame as well
- 95mm back-focus (55mm when back focus spacer and M48 ring installed)
- Drops f/ratio from native f/7 (840mm) to f/5.4 (647mm)
- Reduces exposure time by 68% compared to native f/7
- Built-in 2" filter cell for mounting filters
- 3.18 x 2.12-degree field of view when used with a full frame camera
- 2.08 x 1.39-degree field of view when used with APS-C crop sensor
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