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.
Astronomy Plus M54F to M48F Adapter (TA208)
Astronomy PlusAstronomy Plus M54F to M48F Adapter M54F to M48F metallic adapter. Adds 0 mm of back Focus Technical Specifications Connection Side A M54 x 0.7...
View full detailsAstronomy Plus M54M to M42F Adapter (TA210)
Astronomy PlusAstronomy Plus M54M to M42F Adapter M54M to M42F metallic adapter. Adds 0 mm of back Focus Technical Specifications Connection Side A M54 x 0.75...
View full detailsAstronomy Plus M54M to M48F Adapter (TA57)
Astronomy PlusAstronomy Plus M54M to M48F Adapter M54M to M48F metallic adapter. Adds 2 mm of back Focus Technical Specifications Connection Side A M54 x 0.75...
View full detailsStarizona Canon RF Wide T-Ring (RF-TRING-10)
Starizona5.0 / 5.0
1 Review
Starizona Canon RF Wide T-Ring This wide M48-threaded T-ring will fit Canon RF-mount mirrorless cameras. It is a "T-minus" style ring that is on...
View full detailsPegasus Astro M68 Male to M42 Female
PegasusPegasus Astro M68 Male to M42 Female Adapter (Backfocus) Thickness: 1.4 mm M68 Thread: Pitch 1.0mm / 4mm length M42 Thread Pitch 0.75mm Technica...
View full detailsBaader Wide-T-Ring D52i for Nikon Z (TRING-NZW)
Baader PlanetariumBaader Wide-T-Ring D52i for Nikon Z, with S52 Adapter Baader Wide-T-Ring Nikon Z to connect Nikon Z cameras on the Astro T-2 system and the S52 do...
View full detailsQHYCCD Canon Lens Adapter M42 (020072)
QHYCCDQHYCCD Canon Lens Adapter M42 10mm M42 Canon Lens Adapter for QHYCCD Cooled CMOS (COLDMOS) imaging cameras.. Technical Specifications ...
View full detailsSVBONY SV125 2'' to T2 SLR Camera Adapter (F9196A)
SvbonySVBONY SV125 2'' to T2 SLR Camera Adapter Svbony 2'' to T2 camera adapter fits for all 2'' focusers, at the end of the adapter is threaded to ac...
View full detailsSVBONY 2" T Adapter with Filter Thread (W2760A)
SvbonySVBONY 2" T Adapter with Filter Thread 2" T to M42*0.75 Adapter Thread for Astronomy Monocular Telescope Mount Adapters Accept 2" Filter and Came...
View full detailsBuckeye Seestar S50 Filter Adapter
Buckeye StargazerBuckeye Seestar S50 Filter Adapter These filter holders are meant for M48x0.75 threaded filters. However, it appears as though Baader filters will ...
View full detailsZWO EOS Lens Adapter for 2“ EFW Filter Wheel (EFW2-EOS)
ZWOZWO EOS Lens Adapter for 2“ EFW Filter Wheel If you are looking for the perfect way to connect your EOS lens to the ZWO 2" EFW, then look no furthe...
View full detailsPlayer One M54M-M48M 2MM Adapter (M54M-M48M-2)
Player OnePlayer One M54M-M48M 2MM Adapter M54M-M48M 2mm adapterMaterial:Aluminum 6061-T6Adapter: M54*0.75 male threads and M48*0.75 female threadsExtention ...
View full detailsPlayer One M48M M42M 2mm Adapter (M48M-M42M-2)
Player OnePlayer One M48M M42M 2mm Adapter M48M-M42M 2mm adapter Material:Aluminum 6061-T6 Adapter: M48*0.75 male threads and M42*0.75 female threads Extenti...
View full detailsBaader Hyperion Finetuning-Ring M48, 28 mm (HDFT-28)
Baader PlanetariumBaader Hyperion Finetuning-Ring M48, 28 mm With the addition of Baader's new Finetuning Rings, each Hyperion eyepiece can now function as four eyep...
View full detailsPrimaLuceLab M48 Female to T2 Male Adapter (PL3304842)
PrimaluceLab5.0 / 5.0
1 Review
PrimaLuceLab M48 Female to T2 Male Adapter M48 female to T2 male adapter allows you to connect accessories with M48 thread (48x0.75 male) to those ...
View full detailsBaader Conversion Ring M48a/M48a (M48-INV)
Baader PlanetariumBaader Conversion Ring M48a/M48a Converts an M48 (Zeiss) female thread in an M48 male thread Made of hardened, stainless steel This adapter i...
View full detailsTakahashi Camera angle adjuster (TSA/TOA-130S) (TKA23200)
TakahashiTakahashi Camera angle adjuster (TSA/TOA-130S) This Takahashi camera angle adjuster works with the FC-100, TSA-120 and corrected Mewlon telescopes....
View full detailsTakahashi Multi CA-100 Ring (TKA19203)
TakahashiTakahashi Multi CA-100 Ring The CA ring 100 is designed to adapt the FC/FS Multi-Flattener for use with the FC-100D and FC-100 telescopes. Tak...
View full detailsTakahashi Auxilliary Extension (TKA23250)
TakahashiTakahashi Auxilliary Extension Auxilliary Extension. Features Male M72 and Female M72 threads. 50mm length. Screws onto any M72 threaded Takahash...
View full detailsTakahashi M72-M55.9 Coupling (TKA19205)
TakahashiTakahashi M72-M55.9 Coupling This coupling is used with Takahashi telescopes to reduce the thread from M72 to M55.9. The telescope side has m...
View full detailsTakahashi Extension tube 35mm for ocular turret (TKA00105)
TakahashiTakahashi Extension tube 35mm for ocular turret A 35mm extension tube for the Takahashi turret of eyepieces This extension tube is particularly in...
View full detailsStarizona Hyperstar Camera Adapter
Starizona5.0 / 5.0
1 Review
Starizona Hyperstar Camera Adapter Please Specify your camera model when you place your order Accurate backfocus distance necessitates an adapter t...
View full detailsWilliam Optics Longer Adjusting Adapter for FLAT68III, FLAT7A (AD-M80-45-M48)
William OpticsWilliam Optics Longer Adjusting Adapter for FLAT68III, FLAT7A This adjustable adapter offers a convenient, efficient way to upgrade your WO diagona...
View full detailsAntares Adapter for Maksutov-Cassegrain, SCT (SCTMC)
AntaresAntares Adapter for Maksutov-Cassegrain And SCT Do you want the full repertoire of Schmidt-Cassegrain accessories for your Maksutov-Cassegrain? Jus...
View full detailsTele Vue 3.5" Extension Tube (X3C-0009)
Tele VueTele Vue 3.5" Extension Tube The Tele Vue 3.5″ Extension Tube helps your telescope reach focus when not using a diagonal — as is the case in many i...
View full detailsSky-Watcher Nikon M48 T-Ring (S20301)
Sky-Watcher5.0 / 5.0
1 Review
Sky-Watcher Nikon M48 T-Ring Designed for attaching a Nikon DSLR camera to any of the Sky-Watcher 0.85x Focal Reducer/Correctors.M48 rings are u...
View full detailsPegasus Astro Prodigy Microfocuser Telescope Adapters
PegasusPegasus Astro Prodigy Microfocuser Telescope Adapters Adapter for SCT 2" SCT 2-inchCan be used with SCT 2”telescopes (for 2” male thread telescop...
View full detailsAstronomy Plus C Male to M48 Female Adapter (TA702)
Astronomy Plus – Telescopes & Astrophotography CanadaAstronomy Plus C Male to M48 Female Adapter C Male to M48 Female metallic adapter. Technical Specifications Connection Side A C Male Connecti...
View full detailsPegasus Astro Indigo Filter Wheel Adapter M54-F (INDIGO-FW-ADAPTER-M54F)
PegasusPegasus Astro Indigo Filter Wheel Adapter M54-F The Pegasus Astro Indigo Filter Wheel Adapter M54 Female is a precision-engineered accessory design...
View full detailsPrimaluceLab M60 Adapter for ESATTO 2” LP - USED (PL3600545-U)
PrimaluceLabPrimaluceLab M60 Adapter for ESATTO 2” LP - USED Adapter from M60 to M48, M54 or T2 with stop ring for ESATTO 2" LP allows you to connect any camer...
View full detailsPlaneWave SecureFit Spacers For CDK 14,17,20, & 24
PlanewavePlaneWave SecureFit Spacers For CDK 14,17,20, & 24 When you need a secure way to attach a CCD camera at the image plane of a CDK telescope, the...
View full detailsBaader Clicklock M48i x 0.75 clamp (2" filter/photo thread) (2956248)
Baader PlanetariumBaader Clicklock M48i x 0.75 clamp (2" filter/photo thread) The wait is over. Baader Planetarium has developed the big brother to their acclaimed 1...
View full detailsBaader M48 Extension Tube
Baader PlanetariumBaader M48 Extension Tube Used to adjust the working distance of larger cameras and similar accessories with M48 thread Telescope side M48 intern...
View full detailsAstronomy Plus M42M - M48M Adapter (TA24-2)
Astronomy PlusAstronomy Plus M42M - M48M Adapter M42 Male to M48 Male metallic adapter. Adds 2mm of back Focus Technical Specifications Connection Side A M42...
View full detailsPegasus Astro M68 Male to M63 Male
PegasusPegasus Astro M68 Male to M63 Male Adapter (Backfocus) Thickness: 1.4 mm Thread: Pitch 1.0mm / 4 mm length For Ricardi M63 Reducer & WO Reduce...
View full detailsBaader M54 x 0.75 Inverter Ring - M54M to M54F (M54-INVE)
Baader PlanetariumBaader M54 x 0.75 Inverter Ring - M54M to M54F Inverter ring with continuous M54 x 0,75 male thread Converts an M54 x 0.75 female thread into an...
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