Focusers and Accessories

Adds precise, hands-free electronic focusing to Celestron SCT, EdgeHD, and RASA telescopes DC servo motor provides 1000 steps per revolution for f...

Explore Scientific’s dual speed, 2" AR Series Focuser comes with a 1.25" compression ring eyepiece adapter for added versatility. This adapter or y...

Explore Scientific™ David H. Levy Comet Hunter Telescope is rich in quality components. Among those is the 2? Comet Hunter Focuser, which also can ...

Description APO EDT Series Crayford Style Focuser Item Number FOC25H Weight 1.5lb; .68kg Diameter 2.5" Length 104.8mm

Finding and holding that perfect crisp focus is almost effortless with Explore Scientific’s Rack & Pinion Focuser. Defined by its precision, th...

Explore Scientific Two-Speed 10:1 Focus Knob Mechanism for 2.5" HEX Focusers

Introducing the SCT Parallizer®. This new application of Howie Glatter’s patented Parallizer® principle raises the bar for performance. The 2” hol...

User InstructionsThere is a misconception that the problem of the cylindrical slip-fit system we use for eyepieces and other optical accessories is...

T-adapter with Howie Glatter's Parallizer Patent alignment feature allows your image train to stay parallelThere is a misconception that the proble...

1:10 micro reduction unit Compatibly with many brands Description In the Box Downloads Lacerta Dual Speed 1:10 Microfocus Upgrade Kit f...

Back plate & standard Crayford Focuser for the LS100MT allows you to convert this dedicated solar telescope into one that can be used at night!...

Back plate & standard Crayford Focuser for the LS152MT allows you to convert this dedicated solar telescope into one that can be used at night!...

Back plate & standard Crayford Focuser for the LS80MT allows you to convert this dedicated solar telescope into one that can be used at night!H...

The Lunt Mini is a non-rotating helical focuser that provides a T2 (male) to T2 (female) thread connection. The focuser has 10 mm of precision trav...

1.25" Eyepiece Holder with Brass Compression Ring 10:1 Dual-Speed Fine Focus Control Rack and Pinion Drive System Adjustable Drawtube Tension All-...

Compatible with LS40THa and LS50THa Focuser Type: Rack & Pinion Focuser Ratio: Dual Speed 10:1 Barrel Size: 1.25" Connection: Non-Marring Bras...

Optec engineers have developed a completely new concept for combining telescope focus and camera rotation functions into a single robust, yet compa...

Optec engineers have developed a low profile, yet extremely robust 3-inch focuser for telescope installations where back-focus is at a premium. Wi...

High-torque geared stepper motor with 60N.cm of pull-in torque Lifts imaging payloads up to 6 kg USB-C and 2.4GHz WiFi connectivity for OS-indepen...

Drives DC motors (up to 1A) and unipolar/bipolar stepper motors (up to 2A) Manual control via digital encoder knob and PC control via USB 2.0 ASCO...

Adds a second, high-power motor focus controller to your Pegasus Powerbox Drives demanding bipolar and unipolar stepper motors with up to 2 Amps p...

Large M68 clear aperture for full-frame sensors Consumes only 16.0mm of back focus Supports heavy 6Kg / 13.2 lbs imaging payloads Single USB-C cab...

FocusCube SCT has been replaced by the Focus Cube Zero. Zero allows backlash free movement and is way faster than older motor. This faster motor wi...

Precise, vibration-free manual focusing for the FocusCube v2 Digital rotary encoder with push-button for 1:10 fine focus reduction Allows simultan...