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Enjoy Free Shipping on Orders Over $500 + Same-Day Dispatch (Before 3 PM*) *Some exclusions apply

Adapters, Spacer Rings & Extensions

Adapters are a must-have accessory when you are into astrophotography. You probably want to have some in your inventory to help you complete the back focus needed.
Original price $157.00 - Original price $157.00
Original price
$157.00
$157.00 - $157.00
Current price $157.00

Takahashi Extension tube M98 to M72 (TKA86205)

Takahashi

Takahashi Extension tube M98 to M72 for Reducer CR 0.73x Takahashi M98 extension sleeve in a special design with additional M72x1 internal thread f...

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Original price $157.00 - Original price $157.00
Original price
$157.00
$157.00 - $157.00
Current price $157.00
Original price $141.00 - Original price $141.00
Original price
$141.00
$141.00 - $141.00
Current price $141.00

Takahashi Extension tube M72 for Mewlon-CRS (TKA83205)

Takahashi

Takahashi Extension tube M72 for Mewlon-CRS  Takahashi M72 Extension Sleeve 38mm long, required on the Mewlon-300CR and Mewlon-300CRS when using th...

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Original price $141.00 - Original price $141.00
Original price
$141.00
$141.00 - $141.00
Current price $141.00
Original price $197.00 - Original price $197.00
Original price
$197.00
$197.00 - $197.00
Current price $197.00

Takahashi Long extension tube M98 (TKA38206)

Takahashi

Takahashi Long extension tube M98 no.81L Takahashi M98 extension tube in the long version, light path 55mm. Telescope side M98x1 internal thread, c...

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Original price $197.00 - Original price $197.00
Original price
$197.00
$197.00 - $197.00
Current price $197.00
Original price $133.00 - Original price $133.00
Original price
$133.00
$133.00 - $133.00
Current price $133.00

Takahashi Short extension tube M98 (TKA38205)

Takahashi

Takahashi Short extension tube M98  Takahashi M98 extension tube in the short version, light path 27.5mm.Telescope side M98x1 internal thread, came...

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Original price $133.00 - Original price $133.00
Original price
$133.00
$133.00 - $133.00
Current price $133.00
Original price $154.00 - Original price $154.00
Original price
$154.00
$154.00 - $154.00
Current price $154.00

Takahashi M98 Extension Tube 38.5mm (TKA36582)

Takahashi

Takahashi M98 Extension Tube 38.5mm  Takahashi M98 extension sleeve, length: 38.5mm (light path). M98x1 internal thread to M98x1 external thread. T...

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Original price $154.00 - Original price $154.00
Original price
$154.00
$154.00 - $154.00
Current price $154.00
Original price $146.00 - Original price $146.00
Original price
$146.00
$146.00 - $146.00
Current price $146.00

Takahashi adapter for 645 RD (TKA36581)

Takahashi

Takahashi adapter for 645 RD  no.82 Adapter from M92x1 external thread to M98x1 external thread, light path 11.8mm. In the Box Takahashi adapter f...

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Original price $146.00 - Original price $146.00
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$146.00
$146.00 - $146.00
Current price $146.00
Original price $76.00 - Original price $76.00
Original price
$76.00
$76.00 - $76.00
Current price $76.00

Takahashi CAA Reducer Coupling (TKA36002)

Takahashi

Takahashi CAA Reducer Coupling  The Takahashi TKA36002 Reducer Coupling was designed specifically for the FSQ-106ED Camera Angle A. Item #17 on Ta...

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Original price $76.00 - Original price $76.00
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$76.00
$76.00 - $76.00
Current price $76.00
Original price $125.00 - Original price $125.00
Original price
$125.00
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Current price $125.00

Takahashi Spacer for TOA150 (TKA26583)

Takahashi

Takahashi Spacer for TOA150  In the Box Takahashi Spacer for TOA150 Manual & Warranty Takahashi 5-Years Warranty  

Original price $125.00 - Original price $125.00
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$125.00
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Current price $125.00
Original price $53.00 - Original price $53.00
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$53.00
$53.00 - $53.00
Current price $53.00

Takahashi Ring for 76D flattener (TKA20583)

Takahashi

Takahashi Ring for 76D flattener  This flattener allows is needed when using the 76D flattener on a Takahashi telescope for terrestrial viewing. It...

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Original price $53.00 - Original price $53.00
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$53.00
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Current price $53.00
Original price $109.00 - Original price $109.00
Original price
$109.00
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Current price $109.00

Takahashi 2" Eyepiece adapter (EX-Q) (TKA00596)

Takahashi

Takahashi 2" Eyepiece adapter (EX-Q)  Takahashi 2 inch eyepiece clamp with T2 internal thread (M42x0.75), especially for the Extender Q 1.6x.Suita...

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Original price $109.00 - Original price $109.00
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$109.00
$109.00 - $109.00
Current price $109.00
Original price $75.00 - Original price $75.00
Original price
$75.00
$75.00 - $75.00
Current price $75.00

Takahashi 50.8mm Sleeve for wide T Mount (TKA00207)

Takahashi

Takahashi 50.8mm Sleeve for wide T Mount  Conversion ring for mounting Takahashi wide T-rings on a 2.0" eyepiece holder This conversion ring allows...

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Original price $75.00 - Original price $75.00
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$75.00
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Current price $75.00
Original price $322.00 - Original price $322.00
Original price
$322.00
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Current price $322.00

Takahashi Camera adapter TCA-4 (TKA00210)

Takahashi

Takahashi Camera adapter TCA-4  A Takahashi adapter dedicated to eyepiece projection astrophotography The TCA-4 is a very specialised photo adapter...

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Original price $322.00 - Original price $322.00
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$322.00
$322.00 - $322.00
Current price $322.00
Original price $247.00 - Original price $247.00
Original price
$247.00
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Current price $247.00

PlaneWave 2″ Drawtube Spacer (for 2″ visual and imaging accessories)

Planewave

PlaneWave 2″ Drawtube Spacer (for 2″ visual and imaging accessories) A CCD Spacer that accepts a standard 2″ barrel. These come in lengths of 3.8″,...

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Original price $247.00 - Original price $247.00
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$247.00
$247.00 - $247.00
Current price $247.00
Original price $281.00 - Original price $281.00
Original price
$281.00
$281.00 - $281.00
Current price $281.00

PlaneWave Visual Adapter CDK20/24 (200399)

Planewave

PlaneWave Visual Adapter CDK20/24 Visual Adapter, 3.5″ to 2″ (for CDK20/24): This adapter slides into the optional 3.5″ Hedrick Focuser. The adapte...

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Original price $281.00 - Original price $281.00
Original price
$281.00
$281.00 - $281.00
Current price $281.00
Original price $281.00 - Original price $281.00
Original price
$281.00
$281.00 - $281.00
Current price $281.00

PlaneWave Visual Adapter CDK17 (170399)

Planewave

PlaneWave Visual Adapter CDK17 This adapter slides into the Hedrick Focuser. The adapter steps the 3″ opening down to 2″ for standard 2″ accessorie...

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Original price $281.00 - Original price $281.00
Original price
$281.00
$281.00 - $281.00
Current price $281.00
Original price $281.00 - Original price $281.00
Original price
$281.00
$281.00 - $281.00
Current price $281.00

PlaneWave Visual Adapter CDK12.5 (125399)

Planewave

PlaneWave Visual Adapter CDK12.5 Visual Adapter, 2.75 – 2″ – This adapter slides into the Hedrick Focuser that comes standard on the CDK12.5. The a...

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Original price $281.00 - Original price $281.00
Original price
$281.00
$281.00 - $281.00
Current price $281.00
Original price $249.00 - Original price $249.00
Original price
$249.00
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Current price $249.00

PlaneWave IRF90 Visual Adapter 2″ (600352)

Planewave

PlaneWave IRF90 Visual Adapter 2″ The IRF90 to 2″ Visual Accessory Adapter allows you to attach a 2″ mirror diagonal and eyepiece to your IRF90 rot...

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Original price $249.00 - Original price $249.00
Original price
$249.00
$249.00 - $249.00
Current price $249.00
Original price $281.00 - Original price $281.00
Original price
$281.00
$281.00 - $281.00
Current price $281.00

PlaneWave Visual Adapter CDK 14 (140399)

Planewave

PlaneWave Visual Adapter CDK 14 This adapter slides into the Hedrick Focuser. The adapter steps the 3″ opening down to 2″ for standard 2″ accessori...

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Original price $281.00 - Original price $281.00
Original price
$281.00
$281.00 - $281.00
Current price $281.00
Original price $172.00 - Original price $172.00
Original price
$172.00
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Current price $172.00

Shelyak Alpy SBIG ST camera adapter (PU0149)

Shelyak

 Shelyak Alpy SBIG ST camera adapter Special mechanical adapter to mount an Alpy spectroscope on a ST7, ST8, ST10 or ST2000 camera. The mechanica...

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Original price $172.00 - Original price $172.00
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$172.00
$172.00 - $172.00
Current price $172.00
Original price $132.00 - Original price $132.00
Original price
$132.00
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Current price $132.00

Shelyak Alpy C-Mount Adapter (SE0129)

Shelyak

Shelyak Alpy C-Mount Adapter To use the Alpy 600 spectroscope with a C-mount camera. The Alpy 600 is delivered as standard with a T-mount for the a...

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Original price $132.00 - Original price $132.00
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$132.00
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Current price $132.00
Original price $284.00 - Original price $284.00
Original price
$284.00
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Current price $284.00

Shelyak Alpy FC Connector (SE0131)

Shelyak

Shelyak Alpy FC Connector Optical fiber connector (FC standard) for Alpy spectroscope. It does replace the standard slit of the Alpy 600. In ...

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Original price $284.00 - Original price $284.00
Original price
$284.00
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Current price $284.00
Original price $59.00 - Original price $59.00
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$59.00
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Current price $59.00

Pegasus Astro M68 Male to M65 Male (For SW Esprit 100) (ADAPT-M68M-M65M)

Pegasus

Pegasus Astro  M68 Male to M65 Male (For SW Esprit 100) Thread: Pitch M68/1.0mm, M65/1.0mm This adapter is suitable to connect the SW Esprit 10...

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Original price $59.00 - Original price $59.00
Original price
$59.00
$59.00 - $59.00
Current price $59.00
Original price $59.00 - Original price $59.00
Original price
$59.00
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Current price $59.00

Pegasus Astro Adapter M66 Female to M54 Male. For SW Esprit 100 (ADAPT-M66F-M54M)

Pegasus

Pegasus Astro Adapter M66 Female to M54 Male. (For SW Esprit 100)  Thread: Pitch M66/1.0mm, M54/0.75mm Connects SW Esprit 100 Flatenner with any M...

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Original price $59.00 - Original price $59.00
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$59.00
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Current price $59.00
Original price $39.00 - Original price $39.00
Original price
$39.00
$39.00 - $39.00
Current price $39.00

Pegasus Astro M65 Male to M54 Male (For SW Esprit 100) (ADAPT-M65M-M54M)

Pegasus

Pegasus Astro M65 Male to M54 Male (For SW Esprit 100)  Takes up 2.0mm of backfocus Thread: Pitch M65/1.0mm, M54/0.75mm For SW ESPRIT 100: Connect...

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Original price $39.00 - Original price $39.00
Original price
$39.00
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Current price $39.00
Original price $24.00 - Original price $24.00
Original price
$24.00
$24.00 - $24.00
Current price $24.00

SVBONY Photography Extension Tube for SV13 Spotting Scope (F9162A)

Svbony

SVBONY Photography Extension Tube for SV13 Spotting Scope 1. F9162A is a spotting scope adapter for DSLR camera, you can connect your spotting scop...

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Original price $24.00 - Original price $24.00
Original price
$24.00
$24.00 - $24.00
Current price $24.00
Original price $61.00 - Original price $61.00
Original price
$61.00
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Current price $61.00

Innovations Foresight SBIG AO-8 adapter plate for ONAG SC (AO-8)

Innovations Foresight

Innovations Foresight SBIG AO-8 adapter plate for ONAG SC This plate allows a SBIG adaptive optics AO-8 unit to be mounted in the front (scope port...

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Original price $61.00 - Original price $61.00
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$61.00
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Current price $61.00
Original price $55.00 - Original price $55.00
Original price
$55.00
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Current price $55.00

Innovations Foresight ONAG 59mm dovetail system spacer 16mm (ONAG59-16)

Innovations Foresight

Innovations Foresight ONAG 59mm dovetail system spacer 16mm Use this spacer to insure both imaging and guider cameras are parfocal (both cameras ar...

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Original price $55.00 - Original price $55.00
Original price
$55.00
$55.00 - $55.00
Current price $55.00
Original price $44.50 - Original price $44.50
Original price
$44.50
$44.50 - $44.50
Current price $44.50

Innovations Foresight T2 M42 x 0.75mm spacer 16mm (T2-M42-16)

Innovations Foresight

Innovations Foresight T2 M42 x 0.75mm spacer 16mm Use this spacer to insure both imaging and guider cameras are parfocal (both cameras are in focus...

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Original price $44.50 - Original price $44.50
Original price
$44.50
$44.50 - $44.50
Current price $44.50
Original price $36.50 - Original price $36.50
Original price
$36.50
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Current price $36.50

Innovations Foresight T2 male 2″ nosepiece (T2-2IN)

Innovations Foresight

Innovations Foresight T2 male 2″ nosepiece Use this adapter to attach an ONAG SC unit to a 2″ focuser drawtube, or equivalent equipment. Can be use...

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Original price $36.50 - Original price $36.50
Original price
$36.50
$36.50 - $36.50
Current price $36.50
Original price $36.50 - Original price $36.50
Original price
$36.50
$36.50 - $36.50
Current price $36.50

Innovations Foresight T2 M42 x 0.75mm spacer 8mm long (T2-8MM)

Innovations Foresight

Innovations Foresight T2 M42 x 0.75mm spacer 8mm long Use this spacer to insure both imaging and guider cameras are parfocal (both cameras are in f...

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Original price $36.50 - Original price $36.50
Original price
$36.50
$36.50 - $36.50
Current price $36.50
Original price $20.00 - Original price $20.00
Original price
$20.00
$20.00 - $20.00
Current price $20.00

Innovations Foresight T2 M42 x 0.75mm locking ring (ONAG-T2-M42-LR)

Innovations Foresight

Innovations Foresight T2 M42 x 0.75mm locking ring One T2 M42 x 0.75mm (T thread) locking ring. Can be used at the ONAG SC scope port (SP), imager ...

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Original price $20.00 - Original price $20.00
Original price
$20.00
$20.00 - $20.00
Current price $20.00
Original price $97.00 - Original price $97.00
Original price
$97.00
$97.00 - $97.00
Current price $97.00

Innovations Foresight ONAG 59mm dovetail system to male 2″ adapter (ONAG59-2M)

Innovations Foresight

Innovations Foresight ONAG 59mm dovetail system to male 2″ adapter Use this adapter to attach a 2″ nosepiece to an ONAG XT unit. Can be used at the...

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Original price $97.00 - Original price $97.00
Original price
$97.00
$97.00 - $97.00
Current price $97.00
Original price $82.00 - Original price $82.00
Original price
$82.00
$82.00 - $82.00
Current price $82.00

Innovations Foresight ONAG 59mm dovetail system spacer 24mm (ONAG59-24)

Innovations Foresight

Innovations Foresight ONAG 59mm dovetail system spacer 24mm Use this spacer to insure both imaging and guider cameras are parfocal (both cameras ar...

View full details
Original price $82.00 - Original price $82.00
Original price
$82.00
$82.00 - $82.00
Current price $82.00
Original price $81.00 - Original price $81.00
Original price
$81.00
$81.00 - $81.00
Current price $81.00

Innovations Foresight ONAG 59mm dovetail system 2″ nosepiece (ONAG59-2IN)

Innovations Foresight

Innovations Foresight ONAG 59mm dovetail system 2″ nosepiece Use this adapter to attach an ONAG XT unit to a 2″ focuser drawtube or equivalent. Can...

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Original price $81.00 - Original price $81.00
Original price
$81.00
$81.00 - $81.00
Current price $81.00
Original price $81.00 - Original price $81.00
Original price
$81.00
$81.00 - $81.00
Current price $81.00

Innovations Foresight ONAG 59mm dovetail system to female SCT adapter (ONAG59-SCT)

Innovations Foresight

Innovations Foresight ONAG 59mm dovetail system to female SCT adapter Use this adapter to attach an ONAG XT unit to a male 2″ 24 tpi SCT thread. Ca...

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Original price $81.00 - Original price $81.00
Original price
$81.00
$81.00 - $81.00
Current price $81.00
Original price $139.00 - Original price $139.00
Original price
$139.00
$139.00 - $139.00
Current price $139.00

Astroasis Oasis Focuser Adapter for RedCat 51(OF-RC)

Astroasis

Astroasis Oasis Focuser Adapter for RedCat 51 With this adapter Oasis Focuser can be installed on William Optics RedCat 51 APO. This focusing solut...

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Original price $139.00 - Original price $139.00
Original price
$139.00
$139.00 - $139.00
Current price $139.00
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