Coma Corrector for Sky-Watcher Newton f/4

The Sky-Watcher coma corrector for Newton f/4 is designed to eliminate coma at the edge of the field, thus improving the image quality of your astronomical observations and photography. Optimized for Newton telescopes with a focal ratio of f/4 and above, this corrector offers significantly improved edge-of-field correction without changing the magnification.

Characteristics:

• Threads: 50.8mm (2") male at the front, M48x0.75 male at the back
• Optics: 4 lenses with an FPL51 ED glass lens
• Backfocus: 55mm

Advantages:

• Eliminates coma at the edge of the field for pinpoint stars and a clearer image
• Optimized for Newton telescopes with f/4 and above (f/5, f/6...)
• Maintains the focal length and magnification of the optical system unchanged
• Improves visual and photographic performance

Compatibility:

• For photography, requires a dedicated M48 wide-field T-ring (Sony SW0187, Nikon SW0188, Canon SW0189)