Sky-Watcher Field Flattener for EvoGuide 50ED/DX APO Refractors
Overview:
This field flattener by Sky-Watcher allows the EvoGiude 50ED and 50DX to be used for astrophotography by correcting for field curvature.
Features:
- APS-C field of view: 5.33 x 3.57-degrees
- 17.5 mm back-focus
- 28 mm imaging circle
- T-thread connection or 1.25″ opening for camera mounting
- Thread-on metal caps
