Focusers

Sort by:
Explore Scientific Rack and Pinion Focuser 1" Extension Tube - ESRPEXT1

Explore Scientific Rack and Pinion Focuser Half-Inch Extension Tube - ESRPEXT1

$29.99
Explore Scientific Rack and Pinion Focuser Extension Tube adds half an inch to our 2-inch Rack and Pinion focusers on our ED APO telescopes. CA Residents: Prop 65 WARNING(S)
Explore Scientific Rack and Pinion Focuser 2" Extension Tube - ESRPEXT2

Explore Scientific Rack and Pinion Focuser 1.5-inch Extension Tube - ESRPEXT2

$34.99
Explore Scientific Rack and Pinion Focuser Extension Tube adds 1.5 inches to the 2-inch Rack and Pinion focusers on our ED APO telescopes. CA Residents: Prop 65 WARNING(S)
Explore Scientific 2.5" Extension Tube for the 2.5" Hex Focuser  - ESHEXEXT2

Explore Scientific 1.5-Inch Extension Tube for the 2.5" Hex Focuser - ESHEXEXT2

$39.99
Explore Scientific 1.5-Inch Extension Tube adds 1.5 inches to the 2.5-Inch Hex Focuser - ESHEXEXT2 37 mm tall CA Residents: Prop 65 WARNING(S)