Field Flattener for Sky-Watcher Evoguide 50.
- Two Lens Field Flattener
- Fully Multi-Coated
- 28mm Flat Field
- 6º Pinpoint Stars
- Back Focal Length 17.5mm
- 1.25″ (31.7mm) Internal Diameter
- M42x0.75 Exterior Thread (T2)
- Green Anodised Aluminium Screw-on End Caps
- Net Weight 150g
