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Telescope Eyepiece-Side Adapters

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Tele Vue 3.5" Extension Tube for 2" Focusers

Tele Vue 3.5" Extension Tube for 2" Focusers

B&H # TE3ET MFR # X3C-0009
7 Reviews
Key Features
  • Made in the USA
$6800
In Stock
Celestron Visual Back (1.25") - Screws Onto the Rear of Most Schmidt-Cassegrain Telescopes and Allows Use of 1.25" Diagonals, Tele-Extenders & Other Accessories

Celestron Visual Back (1.25") - Screws Onto the Rear of Most Schmidt-Cassegrain Telescopes and Allows Use of 1.25" Diagonals, Tele-Extenders & Other Accessories

B&H # CEVB MFR # 93653-A
4 Reviews
$4495
In Stock

Tele Vue Schmidt-Cassegrain Adapter - Long

B&H # TESCTAL MFR # ACC-0003
1 Review
Key Features
  • 2" Female SCT Thread Front
  • 2" Inner Diameter Barrel Rear
$6000
In Stock

Vixen Optics EA 36.4mm to 31.7mm (1.25") Adapter

B&H # VIEA125 MFR # ES3720
8 Reviews
Key Features
  • Male 36.4mm Threading On Front
  • 1.25" Push-Fit Barrel On Rear
$2195
Special Order
Expected availability: 6-8 months

Lumicon Thread-In T-Mount Female to 1.25" Female Eyepiece Adapter

B&H # LU125FTT125F MFR # LA1070
6 Reviews
Key Features
  • Female T-Thread Front
  • 1.25" Inner Diameter Rear
  • Made in the USA
$1850
In Stock

Lumicon 1.25" Drop-in Extension Tube (3" Push Back)

B&H # LU125ET3EPB MFR # LA1020
Key Features
  • 1.25" Barrel Front
  • 1.25" Inner Diameter Barrel Rear
  • Adds 1-3.25" (25-83mm) of Path Length
  • Made in the USA
$1850
Special Order
Expected availability: 2-4 weeks

Farpoint 2" to 1.25" Eyepiece Adapter

B&H # FAFAV100 MFR # FAV100
1 Review
Key Features
  • Use 1.25" Eyepieces in 2" Focusers
  • Non-Marking Brass Compression Ring
  • 1.25" and 2" Filter Threads
$2395
In Stock

Lumicon 2" Male to T-Mount Male Adapter

B&H # LU2MTTMALP MFR # LA1080
Key Features
  • 2" Barrel Front
  • Male T-Thread Rear
  • Made in the USA
$2395
Special Order
Expected availability: 2-4 weeks

Lumicon 1.25" Male to 2" Female Drop-In Eyepiece Adapter

B&H # LU125M2SA MFR # LA1055
2 Reviews
Key Features
  • 1.25" Barrel Front
  • 2" Inner Diameter Rear Barrel
  • Made in the USA
$2420
In Stock

Celestron 2" to 1.25" Adapter with Twist-Lock

B&H # CE2125A MFR # 93668
2 Reviews
Key Features
  • Improves on Stock Compression Holders
  • Accepts Standard 1.25" Eyepieces
  • Fits into 2" Holder/Drawtubes
  • Ideal for Imagers and Visual Use
$4495
In Stock

Tele Vue 2" Extension Tube for 2" Focusers

B&H # TE2ET MFR # X2C-0008
3 Reviews
Key Features
  • Made in the USA
$6800
In Stock

Tele Vue Satin 2" to 1.25" Adapter

B&H # TEAS MFR # ASF-8125
1 Review
Key Features
  • Reduces 2" Focuser to 1.25"
$6800
In Stock

Farpoint 1" Eyepiece Extension Tube (1.25")

B&H # FAFAV101 MFR # FAV101
5 Reviews
Key Features
  • Fits 1.25" Eyepieces and Drawtubes
  • Provides Additional Back Focus Distance
Available in other Styles, Configurations & Kits
$1195
Temporarily Out of Stock

Lumicon 1" (25mm) Extension Tube for 1.25" Eyepieces & Acc.

B&H # LU125TET1EPB MFR # LA1010
1 Review
Key Features
  • Adds up to 1" (25mm) of Path Length
  • Made in the USA
$1210
Temporarily Out of Stock

Vixen Optics 45mm DC Ring

B&H # VIR4536.4 MFR # ES2953
Key Features
  • For the R200SS Telescope
$1495
Special Order
Expected availability: 7-14 business days

Lumicon 1.25" Drop-in Extension Tube (1" Push Back)

B&H # LU125DET1EPB MFR # LA1015
Key Features
  • 1.25" Barrel Front
  • 1.25" Inner Diameter Barrel Rear
  • Adds 1" (25mm) of Path Length
  • Made in the USA
$1850
Special Order
Expected availability: 3-5 weeks

Farpoint 3" Eyepiece Extension Tube (1.25")

B&H # FAFAV104 MFR # FAV104
Key Features
  • Fits 1.25" Eyepieces and Drawtubes
  • Provides Additional Back Focus Distance
Available in other Styles, Configurations & Kits
$1850
Temporarily Out of Stock

Farpoint 1.5" Eyepiece Extension Tube (1.25")

B&H # FAFAV102 MFR # FAV102
1 Review
Key Features
  • Fits 1.25" Eyepieces and Drawtubes
  • Provides Additional Back Focus Distance
Available in other Styles, Configurations & Kits
$1850
In Stock

Lumicon 2" Male to 1.25" Female Drop-In Eyepiece Reducer

B&H # LU2M125FR MFR # LA1045
Key Features
  • 2" Male Front
  • 1.25" Barrel Rear
  • Made in the USA
$1850
Special Order
Expected availability: 2-4 weeks

Farpoint 2.25" Eyepiece Extension Tube (1.25")

B&H # FAFAV103 MFR # FAV103
1 Review
Key Features
  • Fits 1.25" Eyepieces and Drawtubes
  • Provides Additional Back Focus Distance
Available in other Styles, Configurations & Kits
$1870
In Stock

Vixen Optics 55mm DC Ring

B&H # VIR5543 MFR # ES2952
Key Features
  • For ED Series Refractors
$1995
Special Order
Expected availability: 7-14 business days

Vixen Optics 64mm DC Ring

B&H # VIR6453 MFR # ES2951
Key Features
  • For ED Series Refractors
$2195
Special Order
Expected availability: 7-14 business days

Lumicon T-Mount Female to 2" Female Eyepiece Adapter

B&H # LU2FTT2FA MFR # LA1075
Key Features
  • Female T-Mount Front
  • 2" Barrel Rear
  • Made in the USA
$2395
Special Order
Expected availability: 2-4 weeks

Lumicon 1.25" Male to 0.965" Female Drop-In Eyepiece Reducer

B&H # LU125M965FR MFR # LA1040
Key Features
  • 1.25" Barrel Front
  • 0.965" Inner Diameter Rear Barrel
  • Made in the USA
$2420
Special Order
Expected availability: 3-5 weeks

Lumicon 1" (25mm) Extension Tube for 2" Eyepieces & Acc.

B&H # LU2TET2EPB MFR # LA1025
1 Review
Key Features
  • Adds up to 1" (25mm) of Path Length
  • Made in the USA
$2420
In Stock

Lumicon 1.25" Male to C-Mount Male Adapter

B&H # LU125MCTMA MFR # LA1085
3 Reviews
Key Features
  • Allows C-Mount Cameras to be Attached to 1.25" Focusers
$2420
In Stock

Vixen Optics 60mm to 50.8mm (2") SX Eyepiece Adapter

B&H # VIEA508 MFR # ES37293
Key Features
  • Adapt 2" Eyepiece to 60mm Focus Tube
  • 10mm Light Path
$2995
Back-Ordered

Vixen Optics 42mm to 31.7mm (1.25") Eyepiece Adapter

B&H # VIEA317 MFR # ES2689
Key Features
  • Adapt 1.25" Eyepiece to 42mm Focus Tube
  • 55mm Light Path
$2995
Special Order
Expected availability: 7-14 business days

Alpine Astronomical Baader 2" Male to T-2 Female Reducer Ring

B&H # ALT228 MFR # T2-28
Key Features
  • Part of the T-2 Astro Modular System
  • Converts 2" Female to T-2 Female Mount
$3000
Special Order
Expected availability: 7-14 business days

Lumicon 2" Drop-in Extension Tube (1.6" Push Back)

B&H # LU2ET1.5PD MFR # LA1035
Key Features
  • 2" Barrel Front
  • 2" Inner Diameter Barrel Rear
  • Adds 1.6" (41mm) of Path Length
  • Made in the USA
$3080
Special Order
Expected availability: 2-4 weeks

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