SCT focusers
5 products
5 products
CNC-Machined in the USA
SCT Crayford Focusers
Stop fighting mirror flop. Add true fine focus to your Schmidt-Cassegrain.
The stock focuser on a Celestron or Meade SCT moves the primary mirror on its baffle tube — the source of the image shift and backlash that ruin high-power views and long exposures. An external Event Horizon Crayford focuser threads onto your scope's rear port and gives you a smooth, zero-backlash final adjustment. Use the scope's knob for rough focus, then the Event Horizon for the critical last touch.
0Image Shift
0Backlash
0.565″Fine-Focus Travel
USAMade & Tested
Threads to Your SCT
Mounts to the standard Celestron & Meade SCT rear port — no modification, no adapters to fabricate.
Manual or Motor-Ready
Dual-speed EV1, single-speed EV2/EV3, or EVRZ/EVRP built to accept your own ZWO EAF or Pegasus motor.
Built One at a Time
Each focuser is CNC-machined, individually assembled and tested in our USA facility before it ships.
Have a Newtonian or Dobsonian instead? See our Newtonian Focusers. New to Crayford focusers? Read the full Event Horizon Focusers guide.
