New! Superbly engineered dual speed Crayford focuser for refractors! Designed to fit tube assemblies with an internal diameter of between 86.5mm to 87.5mm.

The Antares dual-speed Crayford focuser features a focus control with 1:1 and 10:1 speed ratios allowing superbly smooth and precise focusing at all magnifications.

The three screw fastening holes are positioned 120 degrees apart and fitting screws are included.

The overall length of the focuser (minus the 1.25" to 2" eyepiece adaptor), measuring from the edge of the mounting flange is 93mm. Racked out the total focuser tube extension(again minus the eyepiece adaptor) is 86mm. The external diameter of the part that fits inside the refractor tube is 86.4mm

The focuser is still fully (360 degrees)rotatable when fitted to the telescope. The rotation lock screws can be adjusted so that the focuser can be rotated comfortably without further slackening and tightening of the adjustment of the screws.

The focuser has adjustable tension and stiffness making it ideal for carrying heavier eyepieces and cameras. And a great feature allows the focus point to be locked by actually disengaging the focus control knob by simply tweaking a thumb knob.

This is a beautifully engineered focuser and it functions every bit as well as it looks! There is absolutely no backlash and the adjustment can be super light-touch or stiff as you need it - but always with an ultra smooth feel.

Adaptors to mate the focuser with other tube diameters are readily available to your specification: call 0845 634 9192 to discuss your requirements.