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Exceptionally closed to the public to fulfill orders Tuesday to Thursday, until the end of March. OPEN FOR PICKUP ONLY TUESDAY TO SATURDAY. It may take more time than usual to fulfill orders due to eclipse orders.
Exceptionally closed to the public to fulfill orders Tuesday to Thursday, until the end of March. OPEN FOR PICKUP ONLY TUESDAY TO SATURDAY. It may take more time than usual to fulfill orders due to eclipse orders.

Spacer Rings, Extensions & Adapters

Telescope Spacer Rings, Extensions & Adapters will help you achieve a correct back focus. There is many format and size for those rings
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    Player One M48M - M48M 2mm adapter (M48M-M48M-2)

    Player One M48M - M48M 2mm adapterM48M-M48M 2mm adapterMaterial:Aluminum 6061-T6Adapter:M48*0.75 male threads on both sidesExtention Length: 2mmTec...

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    ZWO M54M - M54F 16.5mm Adapter (M54-16.5)

     ZWO M54M - M54F 16.5mm AdapterThis adapter allows conversion from female M54 to female M54 with 16.5mm spacing.Technical Specifications M54 Male T...

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    ZWO M54M - M54F 21mm (M54-21)

    ZWO M54M-M54F 21mm This adapter allows conversion from female M54 to female M54 with 21mm spacing. Technical Specifications M54 M...

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    ZWO M54-M48 Adapter (M54-M48)

    ZWO M54-M48 Adapter  Adapter with M54x0.75 male thread all the way on the outside and M48x0.75 female thread all the way through on the inside Zero...

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    Rowan Astronomy AZ100 Altitude Axis Spacer (AAS)

    Rowan Astronomy AZ100 Altitude Axis Spacer  All CNC machined aluminium and black anodised.Supplied with stainless steel hardware. The Altitude Axis...

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    Baader Hyperion DT-Ring SP54/M49 (2958049)

    Baader Hyperion DT-Ring SP54/M49 for DT Adapter II&III and Hyperion Eyepieces Adapts camera lenses onto Hyperion and Morpheus Eyepieces, as we...

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    Baader Hyperion Finetuning-Ring M48, 28 mm (2958228)

    Baader Hyperion Finetuning-Ring M48, 28 mm With the addition of Baader's new Finetuning Rings, each Hyperion eyepiece can now function as four eyep...

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    Baader Hyperion Zoom M43 / SP54 Adapter (2958086)

    Baader Hyperion Zoom M43 / SP54 Adapter  Hyperion Zoom Adapter for M43 internal thread to SP54 external thread This adapter allows the connection...

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    Baader Hyperion T-Adapter M43i/T-2a (M42x0.75) (2958080)

    Baader Hyperion T-Adapter M43i/T-2a (M42x0.75) To connect DSLR T-rings Connection to the Astro T-2 system for classical eyepiece projection For Hy...

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    Baader Adjustable pin type face wrench ø 2mm (2450062)

    Baader Adjustable pin type face wrench ø 2mm Optional tool for unmounting the M48 / T-2 insert-ring from the Baader Protective CANON T-Ring Also f...

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    Baader M48 Metal Dustcap with M48 inner thread (M48-CAP)

    Baader M48 Metal Dustcap with M48 inner thread Dustcap with M48 female (inner) thread Robust cap made of black anodized metal Dustproof closure for...

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    Baader M48 Metal Dustcap with M48 outer thread (M48-PLUG)

    Baader M48 Metal Dustcap with M48 outer thread Dustcap with M48 male (outer) thread Robust cap made of black anodized metal Dustproof closure for y...

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    Baader M48 Metal Dustcap with Dovetail (M48-DOVE)

    Baader M48 Metal Dustcap with Dovetail  M48 dustcap with dovetail Robust cap made of black anodized metal Dustproof closure for the Baader Heavy Du...

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    Baader Metal Dustcap with M54 internal thread (M54-CAP)

    Baader Metal Dustcap with M54 internal thread Dustcap with M54 female thread Robust cap made of black anodized metal Dustproof closure for your ac...

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    Baader Metal Dustcap with M54 external thread (M54-PLUG)

    Baader Metal Dustcap with M54 external thread Dustcap with M54 male thread Robust cap made of black anodized metal Dustproof closure for your acces...

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    Baader M54 Metal Dustcap with S54a dovetail (M54-DOVE)

    Baader M54 Metal Dustcap with S54a dovetail (M54-DOVE) M54 dustcap with S54a ring dovetail Robust cap made of black anodized metal Dustproof closu...

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    Baader M54 Extension Tubes (M54/5)

    Baader M54 Extension Tubes (M54/5) Used to adjust the working distance of larger cameras and similar accessories with M54 thread Telescope side M5...

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    Baader Adapter M54 external to M48 internal (M54E/M48F)

    Baader Adapter M54 external to M48 internal (M54E/M48F) Reducing Adapter M54 to M48 with M54 male thread Changes the M54 female thread of an adapt...

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    Baader M54 internal Inverter ring (M54-INVI)

    Baader M54 internal Inverter ring (converts external to internal) Changes a M54 male thread to a M54 female thread Width (optical length) = 7 mm Ma...

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    Baader 2" Nosepiece to M54 external with Safety-Kerf (M54-NOSE)

    Baader 2" Nosepiece to M54 external with Safety-Kerf Nosepiece 2" to M54a, ultra-hard with Safety-Kerfs Focus-sided M54 male thread Telescope-side...

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    Antares SCT Adapter Twist-Lock 2" Open Box (T2TL-OPEN)

    Antares SCT Adapter Twist-Lock 2" Tired of threading your Schmidt-Cassegrain accessories on and off? Switch to a smooth 2" barrel with a T2TL Twist...

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    Save $2.73 Save $0.00
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    Coronado Adapter Ring for 90mm Double Stack Filter (AP190)

    Coronado Adapter Ring for 90mm Double Stack Filter Required to double stack an SME90 external primary Etalon, double stacking an original 90mm Coro...

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    Coronado Adapter Ring for 60mm Double Stack Filter (AP186)

    Coronado Adapter Ring for 60mm Double Stack Filter Required to double stack an SME60 external primary Etalon, double stacking an original 60mm Coro...

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    Coronado Adapter Ring for 40mm Double Stack Filter (AP185)

    Coronado Adapter Ring for 40mm Double Stack Filter Required to double stack an SME40 external primary Etalon, double stacking an original 40mm Coro...

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    William Optics Super high precision COPPER T-mount for Nikon full frame (YE-TR-BR48-N)

    Super high precision COPPER T-mount for Nikon full frame  T-mount for Nikon full-frame camera copper version. Made from high quality copper materia...

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    PrimaLuceLab M48 Female to T2 Male Adapter (PL3304842)

    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 ...

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    PrimaLuceLab 9mm M48 Extension (PL3304809)

    PrimaLuceLab 9mm M48 Extension PrimaLuceLab M48 extensions are available in different lengths and they present on both sides of a M48 thread (...

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    PrimaluceLab M48 Spacer 1mm (PL3304801)

    PrimaluceLab M48 Spacer 1mm    Technical Specifications Product Name PrimaLuceLab - M48 Spacer 1mm SKU PRI-PL3304801 Brand PrimaluceLab  ...

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    PrimaLuceLab M48 Male to T2 Female Adapter (PL3304248)

    PrimaLuceLab M48 Male to T2 Female Adapter The M48 male to T2 female adapter allows you to connect accessories with M48 thread (48x0.75 female) to ...

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    PrimaluceLab Adapter ESATTO 2" LP for telescopes with SC thread (PL3600542)

    PrimaluceLab Adapter ESATTO 2" LP for telescopes with SC thread By adding this adapter, you can connect the ESATTO 2" LP low profile robotic focuse...

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    Orion Variable 12-17mm T-thread Spacer Ring (05326)

    Orion Variable 12-17mm T-thread Spacer Ring  In the Box Orion Variable 12-17mm T-thread Spacer Ring Manuals & Warranty Orion 1-year warranty ...

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    Baader UFC M54x0,75 (m) Camera-Adapter (UFC-M54E)

    Baader UFC M54x0,75 (m) Camera-Adapter Baader UFC M54x0,75-Thread Adapter Telescope-side: with mounting plate for UFC-Base (screws included) Camer...

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    Baader Hyperion DT-Ring SP54/M52 (HDT54/52)

    Baader Hyperion DT-Ring SP54/M52 Adapts camera lenses onto Hyperion and Morpheus Eyepieces, as well as DT Adapter II & III, for afocal eyepiec...

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    Baader Hyperion DT-Ring SP54/M58 (HDT54/58)

    Baader Hyperion DT-Ring SP54/M58 Adapts camera lenses onto Hyperion and Morpheus Eyepieces, as well as DT Adapter II & III, for afocal eyepiec...

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    Lunt Clamshell Mounting Ring for LS60THa or LS80THa (CLAM)

    Lunt Clamshell Mounting Ring for LS60THa or LS80THa The black-anodized heavy-duty Lunt Clamshell Mounting Ring for LS60THa or LS80THa mounting ring...

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    QHY Adapter Kit Combo D2 for Canon EF Lens (COMBOD2)

    QHY Adapter Kit Combo D2 (for Canon EF Lens) The Combo D2 adapter kit from QHY is compatible with the: QHY268C, QHY600C, QHY168C, QHY247C, QHY128C,...

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