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Sky-Watcher 0.77x Reducer/Flattener for EvoStar 150DX
- Manufacturer: Sky-Watcher USA
- MPN: S20208
- SKU: S20208
- Last price was: $500.00
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Availability: Backorder
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- 34mm fully illuminated field, compatible with both APS-C and full frame sensors
- 89mm back-focus (55mm when back focus spacer and M48 ring installed)
- Drops f/ratio from native f/8 (1200mm) to f/6.2 (930mm)
- Reduces exposure time by 66% compared to native f/8
- 2.22 x 1.48-degree field of view when used with a full frame camera
- 1.45 x 0.97-degree field of view when used with APS-C crop sensor
- Only compatible with Evostar 150DX focuser
- Includes reducer, metal thread-on caps, back focus spacer and M48 thread adapter
- Built-in 2" filter cell for mounting filters into light path