Reducer / Corrector 0.85x Sky Watcher for eyepiece 72ED

This accessory is necessary for refractors that provide a curved focal plane. The reducer/corrector provides a corrected image all the way to the edge of the field.

Characteristics

• Reduction factor: 0.85x
• Threads: M54 female at the front and M48 male at the back
• Backfocus: 55mm

The use of a focal reducer in astrophotography also allows to reduce the exposure time. It will be necessary to use a large field T-ring M48 dedicated to your camera.