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Telescope Focusers

38 Items
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Focuser Type
Vixen Optics Dual Speed Focuser

Vixen Optics Dual Speed Focuser

B&H # VIDSF MFR # ES37227
Key Features
  • 1/7th Speed Fine-Focus
$20699
In Stock
Celestron Focus Motor v2 for SCT and EdgeHD OTAs

Celestron Focus Motor v2 for SCT and EdgeHD OTAs

B&H # CEFMSCTEDHD MFR # 94155-A
12 Reviews
Key Features
  • Precise Focusing with Zero Backlash
  • Servo Motor with Microprocessor
  • Low, Medium, High Focus Speeds
  • Use with Mount's Hand Controller
$20995
In Stock

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

B&H # EXESRPEXT1 MFR # ESRPEXT1
3 Reviews
Key Features
  • Extends Focal Plane
Available in other Styles, Configurations & Kits
$2999
In Stock

Celestron Focuser Retrofit Kit for RASA 11

B&H # CEFRKIT MFR # 94255
Key Features
  • Enables the Use of a Focus Motor
  • Hands- and Vibration-Free Focusing
$1695
In Stock

Konus Electric Focuser for the #1735 & #1739 Telescopes

B&H # KOEFKS700 MFR # 1090
1 Review
$1995
Special Order
Expected availability: 2-4 weeks

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

B&H # ALSTLTMPFLT MFR # STL-TMPFLT
Available in other Styles, Configurations & Kits
$2700
Special Order
Expected availability: 2-4 weeks

Alpine Astronomical Temperature Sensor for Steeldrive II with Cable

B&H # ALSTLTMP MFR # STL-TMP
Available in other Styles, Configurations & Kits
$2700
Special Order
Expected availability: 2-4 weeks

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

B&H # 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
$2900
In Stock

Alpine Astronomical Baader Diamond Steeltrack T-2 Adapter

B&H # ALBDST2 MFR # BDS-T2
Key Features
  • Replaces Stock Eyepiece Holder
  • T-2 Threads for Imaging Accessories
  • Standard 2" Eyepeice Filter Threads
$3200
In Stock

Alpine Astronomical Baader Diamond Steeltrack M48 Adapter

B&H # ALBDSM48 MFR # BDS-M48
Key Features
  • Replaces Stock 2" Holder
  • Provides Male M48 Mounting Threads
  • Fits Baader Diamond Steeltrack Focusers
Available in other Styles, Configurations & Kits
$3300
In Stock

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

B&H # EXESRPEXT2 MFR # ESRPEXT2
1 Review
Key Features
  • Extends Focal Plane
Available in other Styles, Configurations & Kits
$3499
Temporarily Out of Stock

Alpine Astronomical Steeldrive II Controller Holder for 3" Dovetail

B&H # ALSTLHLDR MFR # STL-HLDR
Available in other Styles, Configurations & Kits
$4400
Special Order
Expected availability: 2-4 weeks

Alpine Astronomical Baader Diamond Steeltrack M68 Adapter

B&H # ALBDSM68 MFR # BDS-M68
Key Features
  • Replaces Stock 2" Holder
  • Provides Male M68 Mounting Threads
  • Fits Baader Diamond Steeltrack Focusers
Available in other Styles, Configurations & Kits
$4600
Special Order
Expected availability: 2-4 weeks

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

B&H # ALBDSAD90 MFR # BDS-AD90
Key Features
  • Adapts Focuser to Optical Tube
  • Requires Focuser for Refractors
Available in other Styles, Configurations & Kits
$4900
In Stock

Alpine Astronomical Baader Diamond Steeltrack Focuser Adapter for Sky-Watcher Refractors with M90x1.5 Threads

B&H # ALBDSAD905 MFR # BDS-AD905
Key Features
  • Adapts Focuser to Optical Tube
  • Requires Focuser for Refractors
Available in other Styles, Configurations & Kits
$5100
Special Order
Expected availability: 2-4 weeks

Alpine Astronomical Flat Base Adapter for BDS-NT Focuser

B&H # ALBDSFLAT MFR # BDS-FLAT
Key Features
  • For Newtonian Diamond Steeltrack Focuser
  • Leveling Screws for Optical Alignment
$5400
Special Order
Expected availability: 2-4 weeks

Alpine Astronomical Baader Diamond Steeltrack Focuser Adapter for Refractors with 97mm Threads

B&H # ALBDSAD97 MFR # BDS-AD97
Key Features
  • Adapts Focuser to Optical Tube
  • Requires Focuser for Refractors
Available in other Styles, Configurations & Kits
$5500
Special Order
Expected availability: 2-4 weeks

JMI Telescopes Motofocus HUSC Hand Unit Cable Adapter Set

B&H # JMHUSCADP MFR # HUSC-ADAPTER
Key Features
  • Converts 3.5mm Plug to RJ11 Phone Plug
  • Easy Cable Extension with Phone Cord
$5557
In Stock

Alpine Astronomical Baader Diamond Steeltrack Focuser Adapter for Vixen Refractors with M88x1 Threads

B&H # ALBDSAD88 MFR # BDS-AD88
Key Features
  • Adapts Focuser to Optical Tube
  • Requires Focuser for Refractors
Available in other Styles, Configurations & Kits
$11900
Special Order
Expected availability: 2-4 weeks

Explore Scientific Crayford Style Focuser for APO EDT Series Telescopes (2")

B&H # EXFOCEDCRBN0 MFR # FOCEDCRBN-01
Key Features
  • Tension Adjustment
  • Micro- and Rough-Focus Knobs
  • 1.25" Compression Ring Eyepiece Adapter
$11999
Back-Ordered - Special Order

Alpine Astronomical Baader Diamond Steeltrack Focuser Adapter for Intes Micro with D66 Flange

B&H # ALBDSINT MFR # BDS-INT
Key Features
  • Adapts Focuser to Optical Tube
  • Requires Focuser for Refractors
Available in other Styles, Configurations & Kits
$13900
Special Order
Expected availability: 2-4 weeks

Alpine Astronomical Baader Diamond Steeltrack Focuser Adapter for Refractors with M93x1 Threads

B&H # ALBDSAD93 MFR # BDS-AD93
Key Features
  • Adapts Focuser to Optical Tube
  • Requires Focuser for Refractors
Available in other Styles, Configurations & Kits
$14700
Special Order
Expected availability: 2-4 weeks

Alpine Astronomical Baader Diamond Steeltrack Focuser Adapter for Meade SCTs with 4" Threads

B&H # ALBDSMDE MFR # BDS-MDE
Key Features
  • Adapts Focuser to Optical Tube
  • Requires Focuser for SCTs
Available in other Styles, Configurations & Kits
$19700
Special Order
Expected availability: 2-4 weeks

iOptron iEAF Electronic Automatic Focuser

B&H # IO8453 MFR # 8453
Key Features
  • For Crayford or Rack-and-Pinion Focusers
  • Stepper Motor
  • Precise Focusing with Zero Backlash
  • Quiet-Running Motor Drive
$19800
Temporarily Out of Stock
Expected availability: 2-4 weeks

Explore Scientific Focuser for AR Series Telescopes (2")

B&H # EXFOCDAR00 MFR # FOCDAR-00
Key Features
  • Tension Adjustment
  • Micro- and Rough-Focus Knobs
  • 1.25" Compression Ring Eyepiece Adapter
$19999
Special Order
Expected availability: 7-14 business days

Lumicon Low-Profile 1.25" Focuser

B&H # LULP125FQ MFR # LH2020
Key Features
  • For Newtonian Telescopes
  • Maximizes Back-Focus Space
  • Square 3.5" Base, 2.75" Hole Spacing
$22950
Special Order
Expected availability: 2-4 weeks

Lumicon Low-Profile 1.25" Focuser with 3 x 3" Base

B&H # LULP125F MFR # LH2000
Key Features
  • For Newtonian Telescopes
  • Maximizes Back-Focus Space
  • Square 3.0" Base, 2.25" Hole Spacing
$22950
Special Order
Expected availability: 2-4 weeks

Explore Scientific APO EDT Series Rack & Pinion Focuser (2")

B&H # EXFOCEDAPORP MFR # FOCEDAPO-RP
Key Features
  • Precise 10:1 Dual Focusing
  • 2" Eyepiece Holder with 1.25" Reducer
  • Etched Scale for Repeatability
  • Compression Ring with Three Thumbscrews
$22999
Back-Ordered

iOptron Electric eFocuser for Photron Ritchey-Chrétien Telescopes

B&H # IO8451 MFR # 8451
Key Features
  • Stepper Motor with Synchronous Belt
  • Precise Focusing with Zero Backlash
  • Quiet Running Motor Drive
  • Low, Medium, High Speeds
Available in other Styles, Configurations & Kits
$23800
Special Order
Expected availability: 7-14 business days

Tele Vue Focusmaster Driver 10:1

B&H # TEFMD101 MFR # FDF-2004
Key Features
  • Vibration-Free Motor-Drive
  • For the TVNP-127is Telescope
  • Two-Button Hand-Controller
  • Variable-Speed Knob
$24000
Special Order
Expected availability: 2-4 weeks
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