This 0.9X reducer and field flattener is optimized for the Sky-Watcher Evolux 82ED Doublet Refractor. Besides flattening the field for better imaging results, it will reduce exposure times by 24%! The Sky-Watcher 0.9X reducer and flattener includes one extra-low dispersion (ED) element for sharp, high contrast results.
The Sky-Watcher 0.9X reducer/corrector threads on to the Evolux 82ED. The package includes a rotator/adapter, shown in the photos, that accept 2" filters. With the reducer corrector installed, the Evolux 82ED refractor will have an effective focal length of 477 mm and and focal ratio of f/5.8. This system will give you a 36 mm illuminated field and 55 mm of back focus.
- Reduction Factor: 0.9X
- Back Focus: 55 mm
- Image Circle: 36 mm
- Optical Design: Includes one ED element
- Threads: M56x1 Female and M48 male
- Accepts Filters: Yes, 2" via included rotator/adapter