Sky-Watcher Evostar 72ED 0.85x Reducer/Flattener
$52.99
Compatible with both APS-C and full frame sensors, APS-C (crop sensors) and smaller recommendedM48x0.75 thread55mm back focusDrops f/ratio from native f/5.8 (420mm) to f/4.93 (355mm)Reduces exposure time by 38% compared to native f/5.85.8 x 3.87-degree field of view when used with a full frame camera3.79 x 2.53-degree field of view…
- Compatible with both APS-C and full frame sensors, APS-C (crop sensors) and smaller recommended
- M48x0.75 thread
- 55mm back focus
- Drops f/ratio from native f/5.8 (420mm) to f/4.93 (355mm)
- Reduces exposure time by 38% compared to native f/5.8
- 5.8 x 3.87-degree field of view when used with a full frame camera
- 3.79 x 2.53-degree field of view when used with APS-C crop sensor
- Includes thread-on adapter to mount reducer to Evostar 72ED focuser
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