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Telescope Focusers

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JMI Telescopes EV-3N Focuser for Newtonian Telescope

JMI Telescopes EV-3N Focuser for Newtonian Telescope

B&H # JMEV3N MFR # EV-3N
$26495
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
$22555
In Stock

JMI Telescopes MotoFocus Motorized Focuser for Explore Scientific ED-127

B&H # JMMFESED127 MFR # MFESED127
Key Features
  • For Smooth and Vibration-Free Focusing
  • Forward and Backward Motion
  • Multiple Speed Settings
  • No Permanent Modifications Required
Available in other Styles, Configurations & Kits
$23995
Special Order
Expected availability: 2-4 weeks

JMI Telescopes Meade Cassegrain Telescope MOTOFOCUS with Round Knob

B&H # JMMFMR MFR # MFMR
Key Features
  • 6-sided Knob with 3 Flat Sides
$23995
Special Order
Expected availability: 3-5 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

Konus Electric Focuser for the #1735 & #1739 Telescopes

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

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
$2495
In Stock

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
Special Order
Expected availability: 2-4 weeks

JMI Telescopes Focuser Backup Plate-Flat

B&H # JMADPTBUPF MFR # ADPTBUPF
$2995
Special Order
Expected availability: 2-4 weeks

JMI Telescopes Focuser Backup Plate-Curved

B&H # JMADPTBUPC MFR # ADPTBUPC
$2995
Back-Ordered

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

B&H # EXESRPEXT1 MFR # ESRPEXT1
2 Reviews
Key Features
  • Extends Focal Plane
Available in other Styles, Configurations & Kits
$2999
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
Special Order
Expected availability: 2-4 weeks

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
Special Order
Expected availability: 2-4 weeks

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

JMI Telescopes Drawtube for EV Telescope Focuser (3")

B&H # JMEVDT30 MFR # EV-DT30
$4730
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
Special Order
Expected availability: 2-4 weeks

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
In Stock

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
Special Order
Expected availability: 3-5 weeks

JMI Telescopes Drawtube for EV Telescope Focuser (5.75")

B&H # JMEVDT57 MFR # EV-DT57
$6050
Special Order
Expected availability: 2-4 weeks

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 Comet Hunter Crayford Style Focuser (2")

B&H # EXFOCCMTHTR0 MFR # FOCCMTHTR-00
Key Features
  • Tension Adjustment
  • Micro- and Rough-Focus Knobs
  • 1.25" Compression Ring Eyepiece Adapter
$11999
Back-Ordered - Special Order

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

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