SkyWatcher Dual-Speed 2-inch Crayford Focuser for Explorer-190MN
DUAL-SPEED 2" CRAYFORD FOCUSER
FOR EXPLORER-190MN MAKSUTOV NEWTONIAN
Designed to retro-fit to Explorer-190MN Maksutov Newtonian telescopes originally supplied with a single-speed 2" Crayford Focuser.
Please note, due to some changes in design of the telescope, this focuser might be not compatible with all MN190 models.
- Along the tube: appr. 85-86mm center-to-center
- Along the curve: appr. 80-85mm (this is much more difficult to exactly measure as the holes are not exactly at the bottom next to the tube...)
Gear Ratio 10:1
360 degree turn of the barrell with a position fixing screw for easy positioning your camera or other accessories
A modern, but extremely simple 2" to 1.25" adapter included (zero optical length)
Full optical length of the focuser (from tube surface): appr. 58mm
When it shows zero stock, please consider the very similar Lacerta alternative:
Low-Profile Crayford 1:10 Micro-Focuser for Newtonian Telescopes
2-inch dual speed crayford focuser from skywatcher