Crayford double speed focuser 1:10 Sky-Watcher for Newton (except f/4)

To achieve more precise focus

• Multiplied focus 1:10
• Stroke length: 115mm
• Adaptation 31.75mm, 50.8mm, T2 and M54x1 female

This model is intended for replace Crayfords equipped with a single focusing speed in Newton Sky-Watcher tubes. This Crayford Dual-Speed ​​eyepiece allows you to obtain fine focus thanks to the 1:10 transmission ratio. A very noticeable advantage during high magnification observations and imaging . Can withstand heavy loads (APN). An adjustment screw located at the bottom of the focuser allows you to maintain focus by following 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 slide on the adapter can be unscrewed to accommodate a T2 ring. The 50.8mm outlet can also be unscrewed from the tube to replace it with an accessory with an M54x1 female thread. A 50.8mm extension tube is also supplied.

This focuser is also suitable for DIY telescope projects.

Distance between holes: 85x85mm. Stroke length: 115mm.

WARNING: Doesn't work for Newton f/4.