A Multiplied Crayford for Newton

This model is intended to replace the Crayford equipped with a single focusing speed on the Newton Sky-Watcher tubes. This Crayford Dual-Speed ​​focuser provides fine focusing with the 1:10 gear ratio. A very appreciable plus during observations at high magnifications and in imaging. It allows to support heavy loads (APN). A clamping screw located at the bottom of the focuser maintains focus according to the orientation of the optical tube.

A 31.75mm adapter is supplied as standard to use eyepieces of the same format from the 50.8mm output. The 31.75mm slider of the adapter can be unscrewed to attach a T2 ring. The 50.8mm outlet can also be unscrewed from the tube to be replaced by an accessory with M54x1 female thread. A 50.8mm extension tube is also delivered.

This focuser is also suitable for DIY telescope projects.

Hole spacing: 85 x 85mm. Stroke length: 115mm.

CAUTION: Does not work for Newton f/4TTENTION

Features

•     Focus gear down 1:10
•     Stroke length: 115mm
•     Adaptation 31.75mm, 50.8mm, T2 and M54x1 female