Sky-Watcher Newton Coma Corrector

The Sky-Watcher coma corrector for Newton is designed to eliminate coma at the edge of the field, thereby improving the image quality of your astronomical observations and photographs. Optimized for f/5 Newtonian telescopes, this corrector offers significantly improved edge-of-field correction without changing magnification.

Features:

• Threads: 50.8mm (2") male at front, M48x0.75 male at rear
• Backfocus: 55mm

Advantages:

• Eliminates coma at the edge of the field for pinpoint stars and a clearer image
• Optimized for f/5 Newtonians, not compatible with f/4 Newtonians
• Maintains the focal length and magnification of the optical system unchanged
• Improves performance in visual and photographic use

Compatibility:

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

Included:

• 1 Sky-Watcher coma corrector for Newton
• 1 Short adapter ring (replaces original crayford focuser ring)
• 1 50.8mm Eyepiece holder