Explore Scientific 2" AR Series Focuser

Explore Scientific's 2-inch AR Series focuser is a dual-speed focuser with 10:1 micro-focusing and adjustable drawtube tension, and it comes with a 1.25-inch compression ring eyepiece adapter.

Key Features

• 10:1 micro-focusing. Ten turns of the micro-focusing knob move the focus as far as one turn of the larger rough focus knob.
• Tension adjustment. Lock the drawtube, or adjust its tension as the weight of eyepieces, cameras and other accessories changes.
• 2-inch, with a 1.25-inch adapter. The adapter, a 2-inch eyepiece or a barreled accessory locks in place with three set screws.
• Large, knurled knobs, easy to grip with cold hands or gloves.

Ideal For

• Owners of an Explore Scientific AR Series refractor: Explore Scientific lists it as its 2-inch achromatic replacement focuser.
• Imagers who change cameras and eyepieces and want to set the drawtube tension for each load.