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HomeOpticsTelescopesAccessoriesTelescope Focusers

Telescope Focusers

73 Items
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Focuser Type
ZWO EAF Pro Electronic Automatic Focuser

ZWO EAF Pro Electronic Automatic Focuser

BH # ZWOEAFPRO MFR # ZWO EAF PRO
2 Reviews
Key Features
  • Compatible with Many Imaging OTAs
  • Universal USB-C Interface
  • Micron-Level Precision Focusing
  • Focus Adjustment Knob
$29900
In Stock
No Store Display
Free 2-Day Shipping
ZWO EAFN Electronic Automatic Focuser
Top Seller

ZWO EAFN Electronic Automatic Focuser

BH # ZWOEAFN MFR # ZWO EAFN
4 Reviews
Key Features
  • Compatible with Many Imaging OTAs
  • Universal USB-C Interface
  • Micron-Level Precision Focusing
  • Maximum Load Capacity: 11 lb
$19900
In Stock
No Store Display
Free 2-Day Shipping

Celestron Focus Motor v2 for SCT and EdgeHD OTAs

BH # CEFMSCTEDHD MFR # 94155-A
13 Reviews
Key Features
  • Precise Focusing with Zero Backlash
  • Servo Motor with Microprocessor
  • Low, Medium, High Focus Speeds
  • Use with Mount's Hand Controller
$23995
In Stock
No Store Display
Free 2-Day Shipping

ZWO 1.25" Helical Focuser for Off-Axis Guider

BH # ZWOHF125 MFR # ZWO-HF125
1 Review
Key Features
  • Use with ZWO OAG & Mini Camera
  • 0.1mm Adjustment Accuracy
  • M42 x 0.75 Threads
  • 6mm Focusing Stroke
$6900
In Stock
No Store Display
Free 2-Day Shipping
Top Seller

ZWO Temperature Sensor for EAF

BH # ZWOEAFSENSOR MFR # ZWO-EAF-SENSOR
1 Review
Key Features
  • Adjusts Focus as Needed
  • Sharp Focus as Temperatures Drop
See All Details
$990
In Stock
No Store Display
Free Shipping for this Item

Alpine Astronomical Baader Diamond Steeltrack T-2 Adapter

BH # ALBDST2 MFR # BDS-T2
Key Features
  • Replaces Stock Eyepiece Holder
  • T-2 Threads for Imaging Accessories
  • Standard 2" Eyepiece Filter Threads
See All Details
$3600
In Stock
No Store Display

Alpine Astronomical Baader Diamond Steeltrack Focuser Adapter for Sky-Watcher Refractors with M90x1 Threads

BH # ALBDSAD90 MFR # BDS-AD90
Key Features
  • Adapts Focuser to Optical Tube
  • Requires Focuser for Refractors
See All Details
Available in other Styles, Configurations & Kits
$6300
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

Pegasus Astro Motor Focus Kit Zero for Celestron 11'' Classic, Edge, RASA SCT

BH # PEMFKZSCT11 MFR # PEG-MFKZERO-SCT11
Key Features
  • Zero-Backlash Stepper Motor
  • Adjustable Belt Tension
  • Separate Motor Controller Required
  • Offset Design Accommodates Filter Wheel
See All Details
Available in other Styles, Configurations & Kits
$19902
In Stock
No Store Display
Free 2-Day Shipping

Alpine Astronomical Baader Diamond Steeltrack Crayford Focuser for SCTs

BH # ALBDSSC MFR # BDS-SC
2 Reviews
Key Features
  • Holds up to 13 Pounds
  • For Schmidt-Cassegrain OTAs
  • 2" Eyepiece Holder
  • Zero Backlash or Flex
Available in other Styles, Configurations & Kits
$54300
In Stock
No Store Display
Free Expedited Shipping

Pegasus Astro Motor Coupler Set with 4mm-8mm Bores (5-Pack)

BH # PEMOTCOUPLS MFR # PEG-MOT-COUPLSET
See All Details
$1284
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Shipping for this Item

Konus Electric Focuser f/ 1735 & 1739 Telescopes

BH # KOEFKS700 MFR # 1090
1 Review
See All Details
$1999
Special Order
Expected availability: 2-4 Weeks
No Store Display
Shipping Charges Apply

Explore Scientific Extension Tube for Select Rack & Pinion Focusers (0.5")

BH # EXESRPEXT1 MFR # ESRPEXT1
3 Reviews
Key Features
  • Extends Focal Plane
See All Details
Available in other Styles, Configurations & Kits
$2999
In Stock
No Store Display
Free Shipping for this Item

Pegasus Astro Pulley & Timing Belt for Motor Focus Kit

BH # PELENSKIT MFR # PEG-LENS-KIT
Key Features
  • For Use with Pegasus Astro Motor Focus Kit
See All Details
$3082
In Stock
No Store Display
Free Shipping for this Item

Pegasus Astro Universal L Bracket for Pegasus Stepper Motor

BH # PEUNIVLBRACK MFR # PEG-UNIV-LBRACK
See All Details
$3210
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Shipping for this Item

Alpine Astronomical Baader 2-to-1.25" Reducer for NT Steeltrack Focusers

BH # ALBDSRDCR MFR # BDS-RDCR
Key Features
  • Allows the Use of Smaller Eyepieces
  • Thumbscrew with Brass Compression Ring
  • Short 4.5mm Optical Height
  • Standard 2" Filter Holder
See All Details
$3300
Special Order
Expected availability: 2-4 Weeks
No Store Display
Shipping Charges Apply

Explore Scientific Extension Tube for Select Rack & Pinion Focusers (1.5")

BH # EXESRPEXT2 MFR # ESRPEXT2
1 Review
Key Features
  • Extends Focal Plane
See All Details
Available in other Styles, Configurations & Kits
$3499
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Shipping for this Item

Alpine Astronomical Flat Temperature Sensor for Steeldrive II with 1m Cable

BH # ALSTLTMPFLT MFR # STL-TMPFLT
See All Details
Available in other Styles, Configurations & Kits
$3500
Special Order
Expected availability: 2-4 Weeks
No Store Display
Shipping Charges Apply

Alpine Astronomical Temperature Sensor for Steeldrive II with Cable

BH # ALSTLTMP MFR # STL-TMP
See All Details
Available in other Styles, Configurations & Kits
$3500
Special Order
Expected availability: 2-4 Weeks
No Store Display
Shipping Charges Apply

Alpine Astronomical Baader Diamond Steeltrack M48 Adapter

BH # ALBDSM48 MFR # BDS-M48
Key Features
  • Replaces Stock 2" Holder
  • Provides Male M48 Mounting Threads
  • Fits Baader Diamond Steeltrack Focusers
See All Details
Available in other Styles, Configurations & Kits
$3700
In Stock
No Store Display

Starfield Astroasis Focuser Adapter for 34mm Collars

BH # STSFAOF34 MFR # SF-AOF-34
Key Features
  • Allows Use of Astroasis Electric Focuser
See All Details
Available in other Styles, Configurations & Kits
$3900
Special Order
Expected availability: 2-4 Weeks
No Store Display
Shipping Charges Apply

Starfield Astroasis Focuser Adapter for 33mm Collars

BH # STSFAOF33 MFR # SF-AOF-33
Key Features
  • Allows Use of Astroasis Electric Focuser
See All Details
Available in other Styles, Configurations & Kits
$3900
Special Order
Expected availability: 2-4 Weeks
No Store Display
Shipping Charges Apply

Starfield Astroasis Focuser Adapter for 32mm Collars

BH # STSFAOF32 MFR # SF-AOF-32
Key Features
  • Allows Use of Astroasis Electric Focuser
See All Details
Available in other Styles, Configurations & Kits
$3900
Special Order
Expected availability: 2-4 Weeks
No Store Display
Shipping Charges Apply

Starfield Astroasis Focuser Adapter for 20mm Collars

BH # STSFAOF30 MFR # SF-AOF-30
Key Features
  • Allows Use of Astroasis Electric Focuser
See All Details
Available in other Styles, Configurations & Kits
$3900
Special Order
Expected availability: 2-4 Weeks
No Store Display
Shipping Charges Apply

Starfield Astroasis Focuser Adapter for 29mm Collars

BH # STSFAOF29 MFR # SF-AOF-29
Key Features
  • Allows Use of Astroasis Electric Focuser
See All Details
Available in other Styles, Configurations & Kits
$3900
Special Order
Expected availability: 2-4 Weeks
No Store Display
Shipping Charges Apply

Starfield Astroasis Focuser Adapter for 28mm Collars

BH # STSFAOF28 MFR # SF-AOF-28
Key Features
  • Allows Use of Astroasis Electric Focuser
See All Details
Available in other Styles, Configurations & Kits
$3900
Special Order
Expected availability: 2-4 Weeks
No Store Display
Shipping Charges Apply

Pegasus Astro Universal L-Bracket Hardware Kit for FocusCube/Motor Focus Kit

BH # PEUNIVKIT MFR # PEG-UNIV-KIT
See All Details
$4494
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Shipping for this Item

Alpine Astronomical Steeldrive II Controller Holder for 3" Dovetail

BH # ALSTLHLDR MFR # STL-HLDR
See All Details
Available in other Styles, Configurations & Kits
$5000
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping

Alpine Astronomical Baader Diamond Steeltrack M68 Adapter

BH # ALBDSM68 MFR # BDS-M68
Key Features
  • Replaces Stock 2" Holder
  • Provides Male M68 Mounting Threads
  • Fits Baader Diamond Steeltrack Focusers
See All Details
Available in other Styles, Configurations & Kits
$5200
Special Order
Expected availability: 2-4 Weeks
No Store Display
Free Standard Shipping
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