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Adapters, Spacers & Extensions for Telescopes

Items 1 - 25 of 76
Baader Planetarium 2" to 2" Inverter Ring

Baader Planetarium 2" Female to 2" Male Inverter - INVERT-2

SKU: BAD-INVERT-2
  • Adapter Connector Type - Side A: 2"
  • Adapter Connector Type - Side B: 2"
  • Adapter or Spacer Length in mm: 47 mm
$28.00
Baader 10 mm Ultra Short T-Adapter for SCT

Baader Planetarium Ultra Short 10mm T-Adapter for SCT - SCT-T

SKU: BAD-SCT-T
  • Adapter Connector Type - Side A: Small SCT (2")
  • Adapter Connector Type - Side B: T or T2 (M42)
  • Adapter or Spacer Length in mm: 10 mm
  • Without using too much back focus, this adapter connects standard Schmidt-Cassegrain telescopes and T-threaded accessories
$52.00
 2" T2 Nose Piece Separated

Baader Planetarium 2" T2 Nose Piece - T2-16

SKU: BAD-T2-16
  • Adapter Connector Type - Side A: 2"
  • Adapter Connector Type - Side B: T or T2 (M42)
  • Contains 48 mm threads in addition to internal standard 42 mm T2 threads to enable a greater variety of uses
  • Thorough inner sharp v-threading and blackening
$42.00
Baader Hyperion T-Adapter for Mark I & Mark II Clickstop Zoom Eyepieces

Baader Hyperion T-Adapter for Mark I & Mark II Clickstop Zooms - HTA54/T2

SKU: BAD-HTA54T2
  • Adapter Connector Type - Side A: M54
  • Adapter Connector Type - Side B: T or T2 (M42)
  • Made specifically for the Baader ClickStop Zoom Eyepiece
  • Permits external T-thread at the eyepiece level for projection photography
  • This Hyperion T-Adapter allows ideal magnification and projection to be obtained when used between your camera and eyepiece
$27.00
Baader Canon EOS C-Mount Camera Adapter - M25

Baader M25 C-Mount Adapter for Canon EOS Cameras - C-EOS

SKU: BAD-C-EOS
  • Camera Compatibility: Canon EOS
  • Threads: C-Mount
  • Optical Length: 26 mm
  • Compatible with Celestron Skyris, Mallincam, and GStar, as well as any other video camera that accepts C-Mount threaded accessories
$96.00
Baader M25 Nikon C-Mount Lens Adapter

Baader C-Mount Lens Adapter for Nikon Cameras - C-NIKON

SKU: BAD-C-NIKON
  • Connection Side A: Nikon F Bayonet
  • Connection Side B: C-Mount
  • Compatible with Celestron Skyris, Mallincam, and GStar, as well as any other video camera that accepts C-Mount threaded accessories
$83.00
Baader C to T2 Adapter with Filter Holder

Baader C Mount to T2 Adapter with Filter Holder - C-T2

SKU: BAD-C-T2
  • Adapter Connector Type - Side A: C or CS
  • Adapter Connector Type - Side B: T or T2 (M42)
  • Adapter or Spacer Length in mm: 25.4 mm
$49.00
Baader DSLR T-Ring System for Canon EOS Cameras

Baader EOS DSLR M48/M42 T-Ring System - No Filter Included - DSLRT

SKU: BAD-DSLRT
  • Side A Connection: Canon EOS bayonet
  • Side B Connection: M48 threads, M42 threads, 2" Nosepiece
  • Accepts 2" threaded filters or 50.4 mm unmounted filters, sold separately
  • Back Focus: 11 mm
$89.00
Baader Protective Wide T-Ring Adapter with Clear Filter

Baader EOS Protective Wide T-Ring System with 50.4 mm Clear Filter - DSLRT-CLR

SKU: BAD-DSLRT-CLR
  • Side A Connection: Canon EOS
  • Side B Connection: M48 thread, M42 thread, 2" Nosepiece
  • Includes one (1) 50.4 mm Clear Filter
  • Back Focus: 12 mm
$143.00
Baader Protective Wide T-Ring Adapter with UV/IR Blocking Filter

Baader EOS Protective Wide 42/48 mm T-Ring System with 50.4 mm UV/IR Blocking Filter - DSLRT-UVIR

SKU: BAD-DSLRT-UVIR
  • Side A Connection: Canon EOS bayonet
  • Side B Connection: M42 threads, M48 threads, 2" Nosepiece
  • Includes one (1) 50.4 mm UV-IR Blocking Filter
  • Back Focus: 11 mm
Free shipping Free shipping
$217.00
Baader Protective Wide T-Ring Adapter with UHC-S Nebula Filter

Baader Protective 48/42 mm T-Ring System with UHC Filter for Canon EOS DSLR Cameras - DSLRT-UHC

SKU: BAD-DSLRT-UHC
  • Side A Connection: Canon EOS
  • Side B Connection: M48 thread , M42 thread, 2" Nosepiece
  • Includes one (1) UHC-S 50.4 mm Nebula Filter
Free shipping Free shipping
$229.00
Baader Protective Wide T-Ring Adapter with 7 nm H-Alpha Filter

Baader EOS Protective Wide T-Ring System with 50.4 mm H-Alpha 7 nm Filter - DSLRT-HA

SKU: BAD-DSLRT-HA
  • Side A Connection: Canon EOS bayonet
  • Side B Connection: 48 mm threads, 42 mm threads, 2" Nosepiece
  • Includes one (1) 7nm H-Alpha 50.4 mm Filter
  • Back Focus: 12 mm
Free shipping Free shipping
$357.00
Baader M42 Nikon T-Ring

Baader M42 T-Ring for Nikon Cameras - TRING-N

SKU: BAD-TRING-N
  • DSLR, SLR or Mirrorless Adapters by Brand: Nikon
  • Side A Connection: Nikon SLR or DSLR Cameras
  • Side B Connection: Astro T-2 System
  • Threads: Standard 42 mm T-Mount
  • Optical Length: 8 mm
$28.00
Baader Planetarium TAK Mewlon M71/M72 Adapter

Baader Planetarium M71/M72 Takahashi Mewlon Aux Adapter - TAK-M71

SKU: BAD-TAK-M71
  • Adapter Connector Type - Side A: M71
  • Adapter Connector Type - Side B: M72
  • Adapter or Spacer Length in mm: 13.5 mm
$54.00
Baader Wide T-Ring for Sony E/NEX Bayonet with D52i/M48 to T-2 and S52

Baader Wide T-Ring Set for Sony E/NEX Cameras - TRING-S

SKU: BAD-TRING-S
  • Side A Connection: Sony E/NEX Bayonet
  • Side B Connection: S52, M42, M48
  • Optical Length: 8.3 mm
$39.00

Baader Wide T-Ring Set for Nikon Z Cameras - TRING-NZW

SKU: BAD-TRING-NZW
  • Side A Connection: Nikon Z bayonet
  • Side B Connection: S52, M42 & M48
  • Removable inner T-2 (M42) adapter reveals M48 threads
$32.00

Baader Universal Filter Changer (UFC) M72 (Male) Camera Adapter - UFC-M72E

SKU: BAD-UFC-M72E
  • Universal Filter Changer to M72 Male Camera Adapter
  • The optical height of the adapter is 2 mm
  • Baader has designed this adapter out of anodized aluminum
  • Includes eight mounting screws.
$69.00

Baader M68 to M74 Thread Adapter for Sky-Watcher Esprit, TS-Optics, and Omegon - M68/M74

SKU: BAD-M68-M74
  • Adapter Connector Type - Side A: M68
  • Adapter Connector Type - Side B: M74
  • Compatibility: Sky-Watcher Esprit, TS-Optics, and Omegon
  • Optical Length: 12.7 mm
$46.00
Baader Connection Ring for Hyperion Mark IV Zoom Eyepiece to Kowa TSN 770 and 880 Spotting Scopes

Baader Hyperion Mark IV Zoom Eyepiece to M54 Kowa TSN 770/880 Spotting Scope Adapter - HYP-KOWA

SKU: BAD-HYP-KOWA
  • Adapter Connector Type - Side A: M53
  • Adapter Connector Type - Side B: M54
  • Eyepiece Compatibility: Baader Hyperion Mark IV Zoom
  • Spotting Scope Compatibility: Kowa TSN 770/880
$35.00
Baader Planetarium Zero Length Adapter - 2" SC to M41.5 for Hyperion Mark IV Zoom Eyepieces

Baader Zero Length 2" SC to M41.5 Reducing Adapter Ring - HYP-SPOT1

SKU: BAD-HYP-SPOT1
  • Adapter Connector Type - Side A: Small SC (2")
  • Adapter Connector Type - Side B: M41.5
  • Eyepiece Compatibility: Baader Hyperion Mark IV Zoom
  • Optical Length: None
$42.00
Baader Planetarium Zero Length Adapter - 2" SC to M44i for Hyperion Mark IV Zoom Eyepieces

Baader Zero Length 2" SC to M44i Reducing Adapter Ring - HYP-SPOT2

SKU: BAD-HYP-SPOT2
  • Adapter Connector Type - Side A: Small SC (2")
  • Adapter Connector Type - Side B: M44
  • Eyepiece Compatibility: Baader Hyperion Mark IV Zoom
  • Optical Length: None
$32.00
Baader 1.25"/T2 Nose Piece

Baader Planetarium Nose Piece 1.25"/T2 - T2-14

SKU: BAD-T2-14
  • Adapter Connector Type - Side A: 1.25"
  • Adapter Connector Type - Side B: T or T2 (M42)
$35.00
Baader 3" Nut for Celestron C11/14 and Meade 10/12

Baader Planetarium 3" Celestron Nut (for C11/14 Meade 10/12) (Holds T2-17) - T2-18

SKU: BAD-T2-18
  • Adapter Connector Type - Side A: 3.3"
  • Adapter Connector Type - Side B: Ring Clamp
$84.00
Baader T2-19 Adapter

Baader Planetarium 2" Nosepiece - Fits Internal 2" SCT Threads - T2-19

SKU: BAD-T2-19
  • Adapter Connector Type - Side A: 2"
  • Adapter Connector Type - Side B: Small SCT (2" x 24 TPI)
  • Optical Length: 32 mm
$42.00
Baader T-2/T-2 Inverter

Baader Planetarium T-2 / T-2 Inverter - T2-26

SKU: BAD-T2-26
  • Adapter Connector Type - Side A: T or T2 (M42)
  • Adapter Connector Type - Side B: T or T2 (M42)
  • Adapter or Spacer Length in mm: 0 mm
$34.00

Camera adapters are a simple, yet crucial component to achieve optimal astro-imaging results. They safely connect an SLR camera to your telescope and can help you achieve the correct back focus for your imaging system. These adapters can range from T-rings, T-adapters, SLR camera adapters, or even adapters capable of mounting your smartphone’s camera to a telescope. These are just a few types of accessories that fall under the camera adapter category.


There are two different options to image using an SLR camera. The first method is called prime-focus imaging. In prime-focus astrophotography, a camera is attached directly to a telescope using a T-ring and T-adapter. That way, the telescope is the lens you use to capture images. While this method is perfect for imaging the Moon and close planets, prime-focus imaging is not recommended for deep-space objects unless you have a telescope with a long focal length. Otherwise, celestial objects may appear small.


The solution is eyepiece projection which attaches your camera to the back of an entire visual observation system. With eyepiece projection, you get the magnification benefits of an eyepiece so your subject will appear larger and in greater detail. This can be tricky, however, because the set up is so heavy it can cause shake and vibration every time you touch the imaging system. While a lot of information is easily available about how best to image using eyepiece projection, this can be a daunting process for beginners. Please reach out to our imaging experts with any questions.


Arguably the easiest method to capture images of the night sky is by using your smartphone. We have a wide selection of smartphone adapters that can help you capture quick and easy photos that you can share with friends and family. These adapters hold your phone in place behind an eyepiece so that you can capture images and videos without any shaking or vibrations. Most adapters are compatible with today’s most popular smartphones from Apple, Samsung, Google, and many others.

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