Explore Scientific 2" AR Series Focuser

The Explore Scientific 2" AR Series Focuser is a dual-speed focuser with a 10:1 micro-focusing knob ratio for fine adjustment, plus a rough-focus knob for fast coarse movement, and includes a 1.25" compression-ring eyepiece adapter.

• 10:1 dual-speed focusing: Ten turns of the micro-focus knob equal one turn of the rough-focus knob.
• 3-point set-screw locking: Secures 2" eyepieces or accessories, or the included 1.25" compression-ring adapter.
• Large, knurled focus knobs: Easy to grip with cold hands or gloves.
• Drawtube tension adjustment: Compensates for heavier eyepieces or cameras.
• Compact: 1.75lb (.79kg), 2" diameter, 201mm long. 1-year limited USA warranty with registration.