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This is the OFFICIAL Astronomy Plus Website. Be aware of Website Copy / EXCEPTIONALLY CLOSED TO THE PUBLIC TO FULFILL ORDERS TUESDAYS, WEDNESDAYS, THURSDAYS, FIRDAYS Until the end of March. Open for pickup only

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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    ZWO M48-M42 Adapter (M48-M42)

    ZWO M48-M42 Adapter The ZWO M48-M42 Adapter allows you to convert a M48 female tread to a M42 female thread.     Technical Specifications Connec...

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    ZWO M42-M48 16.5mm Adapter (T2-M48-16.5)

    ZWO M42-M48 16.5mm Adapter The ZWO M42-M48 16.5mm Adapter is useful to obtain a precise spacing when using a focal reducer or corrector that needs ...

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    SVBONY SV119 2'' M48 Extension Tube Kit (F9190A)

    SVBONY SV119 2'' M48 Extension Tube Kit Svbony extension tube kit of M48x0.75 thread 5mm 10mm 15mm 30mm for solving spacing problems in astrophotog...

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    Original price $37.00 - Original price $37.00
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    Antares M42 Camera Adapter 2" (2DP42)

    Antares M42 Camera Adapter 2" DP2 adapts your 2" focuser or diagonal directly to M42 T-Thread. Threaded for filters. In the Box Antares M42 Camera ...

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    Original price $39.90 - Original price $39.90
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    Askar M48 / M54 Back Focus Adjuster

    Askar M48/M54 Back Focus Adjuster In daily astronomical shooting, the back focus will have an influence. Astronomical photographers are often frust...

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    Original price $174.00 - Original price $174.00
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    Antares Twist-Lock Adapter 2"-1.25" (MDATL)

    Antares Twist-Lock Adapter 2"-1.25" The MDATL Twist-lock adapter allows use of 1.25" accessories in the 2" format. It will work with any barrel des...

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    SVBONY M42 Extension Tube Kit (F9160A)

    SVBONY M42 Extension Tube Kit Svbony fully metal M42 extension tube kit of four different length of 5mm, 10mm, 15mm, 20mm. 1. All metal constructio...

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    ZWO T2-1.25" Filter Adapter (T2-1.25-3)

    ZWO T2-1.25" Filter Adapter The ZWO T2-1.25" Filter Adapter allows you to install a 1.25" filter the sensor of your camera.   Technical Specificati...

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    Celestron M42 Spacer Ring Kit (93618)

    Celestron M42 Spacer Ring Kit To achieve the best astroimages, it is important to attain the proper back-focus distance for your camera relative to...

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    Pegasus Astro Adapter M54 Male to M54 Male (ADAPT-M54M-M54M)

    Pegasus Astro Adapter M54 Male to M54 Male Adapter Thickness: 2.0mm Thread: Pitch 0.75mm / 6 mm length M54 side has an M48 internal thread which ca...

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    Baader 2" to 1.25" ClickLock Reducer (T2-15B)

    Baader 2" to 125" ClickLock Reducer Never before has an eyepiece clamp for amateur astronomy been so elaborately crafted.Ever since Baader Planetar...

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    Antares SCT Camera Adapter M42 55mm (TAL)

    Antares SCT Camera Adapter M42 55mm TAL threads directly onto the back of your Schmidt-Cassegrain and outputs M42 T-thread with a 55mm extension.  ...

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    Antares M54-M48 Camera Adapter (M54-M48)

    Antares M54-M48 Camera Adapter M54-M48 reduces female M54 to female M48 In the Box Antares M54-M48 Camera Adapter Warranty & Manuals Antares ...

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    ZWO M42M-M48F 22.5mm Extender (M42-M48-22.5)

    ZWO M42M-M48F 22.5mm Extender The thickness of the M42M-M48F 22.5mm extender is 22.5mm. It is an important astronomical accessory for ASI2600MM ...

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    Pegasus M54 Male to M42 Male (ADAPT-M54M-M42M)

    Pegasus M54 Male to M42 Male Adapter Adapter Thickness: 2.0mm Thread: Pitch 0.75mm / 6 mm length M54 side has a M48 internal thread In the Box Pe...

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    PrimaluceLab Adapter from M56

    PrimaluceLab Adapter from M56 PrimaluceLab Adapter from M56 to M48 with Stop Ring for ESATTO 2" (PL3600216) The PrimaluceLab Adapter from M56 to M...

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    Original price $128.00 - Original price $169.00
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    ZWO M54 Male to M42 Female Adapter (M54M-M42F)

    ZWO M54 Male to M42 Female Adapter   In the Box ZWO M54 Male to M42 Female Adapter Manuals & Warranty ZWO 2-Years Warranty  

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    Pegasus Astro Adapter M54 Male to M42 Female (ADAPT-M54M-M42F)

    Pegasus Astro Adapter M54 Male to M42 Female Adapter Thickness: 2.0mm Thread: Pitch 0.75mm / 4 mm length M54 side has a M48 internal thread In th...

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    ZWO T2-T2 Adapter (T2-T2)

    ZWO T2-T2 Adapter The ZWO T2-T2 Adapter allows you to convert a M42x0.75 (T/T2) female thread to a male one. It has an optical length of 2mm.   Tec...

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    ZWO M48-M48 16.5mm Adapter (M48-EXT16.5)

    ZWO M48-M48 16.5mm Adapter The ZWO M48-M48 16.5mm Adapter is useful to obtain a precise spacing when using a focal reducer or corrector that needs ...

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    ZWO M42-M42 21mm Adapter (T2-EXT-21)

    ZWO M42-M42 21mm Adapter The ZWO M42-M42 21mm Adapter is useful to obtain a precise spacing when using a focal reducer or corrector that needs a ce...

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    PrimaluceLab Adapter ESATTO 2"

    PrimaluceLab Adapter ESATTO 2" Adapter ESATTO 2" for ARCO 2" allows you to connect the rotator to ESATTO 2" microfocuser and control it through t...

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    William Optics M48 Push-in Nosepiece for WO 2" Diagonals (WD-DIG2A)

    William Optics M48 Push-in Nosepiece for WO 2" Diagonals  Special Reduced Price ! Take advantage of this high quality adapter nose piece for almost...

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    SVBONY SV196 T2 Lens Mount Adapter for Sony Alpha DSLR (W9153A)

    SVBONY SV196 T2 Lens Mount Adapter for Sony Alpha DSLR Allowing you to fit any T2 mount lens or accessory to your Sony Alpha or Minolta AF DSLR cam...

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    William Optics Longer Adjusting Adapter for FLAT68III, FLAT7A (AD-M80-45-M48)

    William Optics Longer Adjusting Adapter for FLAT68III, FLAT7A This adjustable adapter offers a convenient, efficient way to upgrade your WO diagona...

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    Original price $66.00 - Original price $66.00
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    Celestron 2" to 1.25" Adapter with Twist-Lock (93668)

    Celestron 2" to 1.25" Adapter with Twist-Lock The Celestron 2” to 1.25” Adapter with Twist-Lock was designed for visual observers who use both 2” a...

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  • Original price $31.92 - Original price $31.92
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    Antares SCT Camera Adapter M42 30mm (TAS)

    Antares SCT Camera Adapter M42 30mm TAS threads directly onto the back of your Schmidt-Cassegrain and outputs M42 T-thread with a 30mm extension.  ...

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    Original price $31.92 - Original price $31.92
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  • Original price $17.29 - Original price $17.29
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    Antares M42 Camera Adapter 1.25" (DP1)

    Antares M42 Camera Adapter 1.25" DP1 adapts your 1.25" focuser or diagonal directly to M42 T-Thread. Threaded for filters.   In the Box Antares M42...

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    ZWO Canon EOS-T2 Lens Adapter (EOS-T2-II)

    ZWO Canon EOS-T2 Lens Adapter The ZWO Canon EOS-T2 Lens Adapter has two parts (EOS-T2 adapter and 5mm length T2-extender). It’ unadjustable and su...

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    Original price $80.00 - Original price $80.00
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  • Original price $29.26 - Original price $47.88
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    Tele Vue Accessory Tube for 2.4"

    Tele Vue Long Accessory Tube for 2.4" The Tele Vue 0.040″ (1mm) Long Accessory Tube for 2.4″ adds 0.040″ (1mm) extension between Imaging System acc...

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  • Original price $96.00 - Original price $96.00
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    Starizona HyperStar ZWO Filter Drawer Adapter for ZWO Cooled Cameras

    Starizona HyperStar 8/6 ZWO Filter Drawer Adapter for ZWO Cooled Cameras HyperStar 8 / 6 ZWO Filter Drawer Adapter for ZWO Cooled Cameras In the B...

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    Original price $96.00 - Original price $96.00
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    Baader T-2 Fine-Adjustment rings (0,3 / 0,5 / 1 mm) - Aluminium

    Baader T-2 Fine-Adjustment rings (0,3 / 0,5 / 1 mm) - Aluminium Astro T-2 System spacer (Fine-Adjustment) rings, available in thickness 0,3mm (b...

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    Original price $9.00 - Original price $29.00
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  • Original price $58.00 - Original price $58.00
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    Baader Adapter M54 internal to M48 external (M54F/M48E)

    Baader Adapter M54 internal to M48 external (M54F/M48E) Reducing Adapter M54 to M48 with M54 female thread Changes the M54 male thread of an adapte...

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    Original price $58.00 - Original price $58.00
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    Tele Vue 4.0x 2" PowerMate T-Ring Adapter Open Box (PTR-4201-OPEN)

    Tele Vue 4.0x 2" PowerMate T-Ring Adapter The Tele Vue 4.0x 2″ PowerMate T-Ring Adapter allows imaging through 4.0x 2″ PowerMate lens assemblies. T...

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    Original price $78.00
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    Sold out
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    William Optics M63 to M48 Photo Adapter (P-PAM63-48)

    William Optics M63 to M48 Photo Adapter    Technical Specifications Weight:185g In the Box William Optics M63 to M48 Photo adapter Warranty &...

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    Original price $86.00 - Original price $86.00
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    William Optics 2" to 1.25" RotoLock Eyepiece Adapter - Gold (F-ROTO-A2-125GDII)

    William Optics 2" to 1.25" RotoLock Eyepiece Adapter - Gold  The new RotoLock series of adapters from William Optics may well set the "gold' standa...

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    Original price $72.00 - Original price $72.00
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