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Telescope Focusers
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Focuser Type
Alpine Astronomical Baader Diamond Steeltrack Crayford Focuser for SCTs
B&H # ALBDSSC MFR # BDS-SC
Key Features
- Holds up to 13 Pounds
- For Schmidt-Cassegrain OTAs
- 2" Eyepiece Holder
- Zero Backlash or Flex
Available in other Styles, Configurations & Kits
$42400
In Stock
ZWO Electronic Automatic Focuser (Standard)
B&H # ZWOEAF5V MFR # ZWO-EAF-5V
Key Features
- Compatible with Many Imaging OTAs
- Precise Control for Planetary & DSO
- 35mm Stepper Motor with 5760 Steps
- Metal Housing with Anodized Finish
$19900
Special Order
Expected availability: 4-6 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
$19900
In Stock
Celestron Focus Motor v2 for SCT and EdgeHD OTAs
B&H # CEFMSCTEDHD MFR # 94155-A
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
ZWO Temperature Sensor Of EAF
B&H # ZWOEAFSENSOR MFR # ZWO-EAF-SENSOR
$990
Special Order
Expected availability: 4-6 Weeks
Konus Electric Focuser for the #1735 & #1739 Telescopes
B&H # KOEFKS700 MFR # 1090
$1999
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
Explore Scientific Extension Tube for Select Rack & Pinion Focusers (0.5")
B&H # EXESRPEXT1 MFR # ESRPEXT1
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
In Stock
Explore Scientific Extension Tube for Select Rack & Pinion Focusers (1.5")
B&H # EXESRPEXT2 MFR # ESRPEXT2
Available in other Styles, Configurations & Kits
$3499
Temporarily Out of Stock
Starfield Astroasis Focuser Adapter for 34mm Focuser Collars
B&H # STSFAOF34 MFR # SF-AOF-34
$3900
Temporarily Out of Stock
Expected availability: 2-4 Weeks
Starfield Astroasis Focuser Adapter for 33mm Focuser Collars
B&H # STSFAOF33 MFR # SF-AOF-33
$3900
Temporarily Out of Stock
Expected availability: 2-4 Weeks
Starfield Astroasis Focuser Adapter for 32mm Focuser Collars
B&H # STSFAOF32 MFR # SF-AOF-32
$3900
Temporarily Out of Stock
Expected availability: 2-4 Weeks
Starfield Astroasis Focuser Adapter for 30mm Focuser Collars
B&H # STSFAOF30 MFR # SF-AOF-30
$3900
Temporarily Out of Stock
Expected availability: 2-4 Weeks
Starfield Astroasis Focuser Adapter for 29mm Focuser Collars
B&H # STSFAOF29 MFR # SF-AOF-29
$3900
Temporarily Out of Stock
Expected availability: 2-4 Weeks
Starfield Astroasis Focuser Adapter for 28mm Focuser Collars
B&H # STSFAOF28 MFR # SF-AOF-28
$3900
Temporarily Out of Stock
Expected availability: 2-4 Weeks
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
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
Available in other Styles, Configurations & Kits
$5100
Special Order
Expected availability: 2-4 Weeks
Starfield Astroasis Universal Focuser Adapter Kit
B&H # STSFAOFUNIV MFR # SF-AOF-UNIV
$5200
Temporarily Out of Stock
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
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
ZWO 1.25 Helical Focuser
B&H # ZWOHF125 MFR # ZWO-HF125
$5900
Special Order
Expected availability: 4-6 Weeks