Spacer Rings, Extenders, and Telescope Adapters
Spacer rings, extension tubes, and adapters for telescopes are essential imaging accessories for achieving precise back focus and a perfect fit between your optical instruments. These devices compensate for variations in distance between the telescope and cameras or accessories, ensuring optimal focus for astrophotography and visual observation.
Available in a wide range of formats and sizes, these rings and adapters are compatible with most telescopes and DSLR, mirrorless, or CCD cameras. Extenders and spacer rings also allow you to adjust the sensor position to achieve the best focal plane, a critical factor for capturing sharp, detailed images of celestial objects. To complete your setup, explore our full range of adapters, extension tubes, and spacers, including T-rings, T-mounts, T-adapters, and much more.
At Astronomy Plus, we offer a carefully curated selection of reliable and easy-to-install extension tubes, spacers, and adapters for telescopes. Choosing the right accessory ensures a precise fit for your equipment, preserves the integrity of your instruments, and optimizes your astrophotography sessions, whether you’re a beginner or an experienced observer, allowing you to fully harness your telescope’s potential.
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Baader UFC S70 RASA 36cm Telescope-Adapter (UFC-RASA36)
Baader PlanetariumBaader UFC S70 RASA 36cm Telescope-Adapter Baader UFC S70 / RASA 36cm (14") Adapter telescope-side: RASA 36cm-plate camera-side: S70 dovetail can ...
View full detailsAstronomy Plus Fine M68 Adjustment Spacer Rings (0.1 to 1mm)
Astronomy PlusAstronomy Plus Fine M68 Adjustment Spacer Rings (0.1 to 1mm) Spacers in astrophotography are used to achieve precise backfocus, ensuring the optima...
View full detailsADM Converts to D Series to V Series for VersaPlate (D2V-VP)
ADMADM Converts to D Series to V Series for VersaPlate Converts V Series mounts to a D Series saddle. Specifically designed for the Software Bisque V...
View full detailsADM D Series Dovetail Adapter for PoleMaster Mounting (DPA-POLE)
ADMADM D Series Dovetail Adapter for PoleMaster Mounting Fits D Series dovetail bars. D Series dovetail clamp allows you to attach the QHY PoleMaster ...
View full detailsADM D Series Dovetail Adapter for Takahashi Mounts (DPA-TAK)
ADMADM D Series Dovetail Adapter for Takahashi Mounts Fits D Series dovetail bars. Attaches directly to Takahashi or other mounts that have two 8mm ta...
View full detailsADM D Series Dovetail Adapter for StarSense Mounting (DPA-SS)
ADMADM D Series Dovetail Adapter for StarSense Mounting Fits D Series dovetail bars. D Series dovetail clamp allows you to attach the Celestron StarS...
View full detailsADM D Series Dovetail Adapter (DPA)
ADMADM D Series Dovetail Adapter Fits D Series dovetail bars. D Series dovetail clamp allows you to attach accessories to a D series dovetail bar. Inc...
View full detailsADM D Series Femail to SYNTA Series Female Adapter (DPA-SYNTA-FF)
ADMADM D Series Femail to SYNTA Series Female Adapter Two female dovetails on each side of the single clamp. One side is D Series, the other side is S...
View full detailsBaader UFC S70 RASA 8" Telescope-Adapter (UFC-RASA8)
Baader PlanetariumBaader UFC S70 RASA 8" Telescope-Adapter Baader UFC S70 RASA 8" telescope adapter for use with cameras with 13mm or less back focus and T-2/M-48 o...
View full detailsBaader UFC M68x1 (int) Camera-Adapter (UFC-M68I)
Baader PlanetariumBaader UFC M68x1 (int) Camera-Adapter Baader UFC M68x1-Thread Adapter Telescope-side: with mounting plate for UFC-Base (screws included) Camera-si...
View full detailsBaader UFC S70 M68x1 (ext) Adapter, telescope-sided (UFC-M68E)
Baader PlanetariumBaader UFC S70 M68x1 (ext) Adapter, telescope-sided Baader UFC M68x1-Thread Adapter Telescope-side: with mounting plate for UFC-Base (screws inclu...
View full detailsBaader UFC S70 / M57x0,75 (m) Telescope-Adapter (UFC-M57E)
Baader PlanetariumBaader UFC S70 / M57x0,75 (m) Telescope-Adapter Baader UFC S70 / M57 (m) Thread-Adapter Telescope-sided M57 outer thread – for adaptation to Borg ...
View full detailsBaader UFC M72 (m) Camera-Adapter (optical height: 2 mm) (UFC-M72E)
Baader PlanetariumBaader UFC M72 (m) Camera-Adapter (optical height: 2 mm) Optical height: 2 mm Camera-side with M72 outer (male) thread (e.g. for Starlight Xpress...
View full detailsBaader UFC 36mm AUX-Filter holder (UFC-RD36)
Baader PlanetariumBaader UFC 36mm AUX-Filter holder Baader UFC 36 mm AUX-Filter-Holder suitable for unmounted, round 36 mm filters Requires 1x UFC D50.4 Slider #245...
View full detailsBaader UFC 31mm AUX-Filter holder (UFC-RD31)
Baader PlanetariumBaader UFC 31mm AUX-Filter holder Baader UFC 31 mm AUX-Filter-Holder suitable for unmounted, round 31 mm filters Requires 1x UFC D50.4 Slider #245...
View full detailsBaader 2" Nosepiece to S52 (TRING-S52/2)
Baader PlanetariumBaader 2" Nosepiece to S52 2" / S52 ultra hard nose piece with safety groove Focus side S52 dovetail ring Telescope side 2" barrel with 48mm filte...
View full detailsBaader Adapter M68a to S52a – for Wide-T-Rings (TRING-S52/M68)
Baader PlanetariumAdapter M68a to S52a – for Wide-T-Rings With the S52/M68 adapter, all Baader Wide T-rings can be adapted directly to an M68 female thread. This al...
View full detailsBaader S52a to M48i Adapter (TRING-S52/M48)
Baader PlanetariumBaader S52a to M48i Adapter Changer / Inverter Ring S52/M48 for T-Rings / Adapters with S52 dovetail Can be used to combine T-Rings with S52 dove...
View full detailsBaader 1¼” Extension / Spacer Tube (BIN-EXT)
Baader PlanetariumBaader 1¼” Extension / Spacer Tube To adapt long focal length eyepieces (30-42mm) onto Maxbright Bino-Viewer 2 pieces required for Baader Maxbrigh...
View full detailsKowa Digiscoping Adapter for TSN-660M/600/82SV
KowaKowa Digiscoping Adapter for TSN-660M/600/82SV Compatible current Kowa System S spotting scopesTSN-663M/664MTSN-601/602TSN-82SV Digiscoping adapter...
View full detailsExplore Scientific T2 Ring - Nikon (49-20000)
Explore ScientificExplore Scientific T2 Ring - Nikon Connect your Bresser Microscope or Telescope with a Nikon SLR camera and take images or videos of your observe...
View full detailsExplore Scientific T2 Ring - Canon EOS (49-21350)
Explore ScientificExplore Scientific T2 Ring - Canon EOS Connect your Microscope or Telescope with a Canon EOS SLR camera and take images or videos* of your observ...
View full detailsExplore Scientific 50mm (2") T2 Camera Adapter (510365)
Explore ScientificExplore Scientific 50mm (2") T2 Camera Adapter Explore Scientific’s 50mm (2") T2 Camera Adapter is perfect for all DSLR cameras to attach to any ...
View full detailsBaader Eyepiece Projection adapter ( OPFA- I - VII )
Baader PlanetariumBaader Eyepiece Projection adapter Baader OPFA eyepiece holder for classic eyepiece projection with SLR and DSLR cameras Each OPFA is a complete ...
View full detailsBaader Microstage II Digiscoping Adapter (MSTAGE-II)
Baader PlanetariumBaader Microstage II Digiscoping Adapter Secure grip! 25mm wide eyepiece clamp, for safely holding heavy cameras without any torsion. Much more ...
View full detailsBaader Morpheus® M43 / SP54 Adapter (MTA43/54)
Baader PlanetariumBaader Morpheus® M43 / SP54 Adapter Morpheus® Adapter to convert the Morpheus M43 external top-thread into a SP54 external thread – without adding...
View full detailsBaader Hyperion Zoom T-Ring SP54/T-2 (HTA54/T2)
Baader PlanetariumBaader Hyperion Zoom T-Ring SP54/T-2 To adapt DSLR T-Rings onto Clickstop-Zoom eyepieces The only ring with direct transition from the SP54 system...
View full detailsBaader Hyperion SP54/SP54 Extension Ring (HEXT54)
Baader PlanetariumBaader Hyperion SP54/SP54 Extension Ring Extension Ring with 11mm optical path length, with threaded protective flap for the SP54 external threa...
View full detailsBaader Hyperion Stepper-Ring M72 onto M82 (HDT72/82)
Baader PlanetariumBaader Hyperion Stepper-Ring M72 onto M82 To connect Hyperion eyepiece to larger telescope systems For the DSLR 2 "filter holder For direct conn...
View full detailsBaader Hyperion Stepper-Ring M62 onto M77 (HDT62/77)
Baader PlanetariumBaader Hyperion Stepper-Ring M62 onto M77 To connect Hyperion eyepiece to larger telescope systems Requires Hyperion DT-ring HDT 54/62 (#29580...
View full detailsBaader Hyperion Stepper-Ring M62 onto M72 (HDT62/72)
Baader PlanetariumBaader Hyperion Stepper-Ring M62 onto M72 To connect Hyperion eyepiece to larger telescope systems Requires Hyperion DT-ring HDT 54/62 (#29580...
View full detailsBaader Hyperion Stepper-Ring M62 onto M67 (HDT62/67)
Baader PlanetariumBaader Hyperion Stepper-Ring M62 onto M67 To connect Hyperion eyepiece to larger telescope systems Requires Hyperion DT-ring HDT 54/62 (295806...
View full detailsBaader Hyperion DT-Ring SP54/M62 for DTAdapter II&III and Hyperion Eyepieces (HDT54/62)
Baader PlanetariumBaader Hyperion DT-Ring SP54/M62 for DTAdapter II&III and Hyperion Eyepieces Adapts camera lenses onto Hyperion and Morpheus Eyepieces, as...
View full detailsBaader Hyperion DT-Ring SP54/M55 for DTAdapter II&III and Hyperion Eyepieces (HDT54/55)
Baader PlanetariumBaader Hyperion DT-Ring SP54/M55 for DTAdapter II&III and Hyperion Eyepieces Adapts camera lenses onto Hyperion and Morpheus Eyepieces, as...
View full detailsBaader Hyperion DT-Ring SP54/M46 for DTAdapter II&III and Hyperion Eyepieces (HDT54/46)
Baader PlanetariumBaader Hyperion DT-Ring SP54/M46 for DTAdapter II&III and Hyperion Eyepieces Adapts camera lenses onto Hyperion and Morpheus Eyepieces, as...
View full detailsBaader Hyperion DT-Ring SP54/M43 (HDT54/43)
Baader PlanetariumBaader Hyperion DT-Ring SP54/M43 Adapts camera lenses onto Hyperion and Morpheus Eyepieces, as well as DT Adapter II & III, for afocal eye...
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