Spacer Rings, Extenders, and Telescope Adapters

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...

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

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...

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...

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...

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

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...

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

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...

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...

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...

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

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

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 ...

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

Baader 3.3" for Celestron C11 / C14 and Meade 10-14" 3.3" thread for C11 and C14 For connecting the 2" eyepiece clamp no. 2408140 (T-2 component ...

Askar M42-M48 Photo Adapter for FMA180 The Askar M42-M48 Photo Adapter for FMA180 allows you to achieve an optimal seal on the back of the Aska...

TSN-AS1.25G (Grub screw fitting) With the use of KOWA-SYSTEM Astronomy adapters, a Kowa PROMINAR TSN-99/88/880/770 spotting scope can accept stand...

 Kowa TSN-EX16 1.6x extender for TSN-99/88/880/770 series 1.6x extender for TSN-99/88/880/770 spotting scopes compatiable with the following eyepi...

PrimaluceLab M56 15mm extension tube for ESATTO 2" The M56 15mm extension tube can be directly threaded to the ESATTO 2" draw tube and allows you t...

Optec Universal M54 Adapter for Lepus Lepus Universal M54x0.75mm Adapter, 50mm long M54-thread adapter for any camera with 55mm depth-to-sensor. De...

TEC ADC Adapter Set TEC is now offering the Baader 2″/T-2 Nosepiece and the Blue Fireball 2″ /T-2 Adapters for the Gutekunst Atmospheric Dispersion...

Lunt 1.25" Adapter for Blocking Filters The Lunt 1.25" Adapter for Blocking Filters allows the use of a Lunt 2″ blocking filter in a 1.25″ focuser ...

APM Adjustment Flange for M82 Reducer With our tilt adapter you can correct a possible tilting of your camera sensor in the beam path. Tilting can ...

Antares Variable Camera Adapter 1.25" EP1-V is a combination camera adapter for 1.25" that allows for both direct and variable extention eyepiece p...

Antares M42 Variable Camera Extender Adapter (T2-EXT-V) T2-EXT-V is a variable M42 T-thread extender with 60-100mm range   In the Box Antares M42 V...

Antares M42 Variable Camera Adapter Astrophotography using intermediary lens systems can require a precision back-focus to the image plane so as to...

Antares M42 Pentax K T-Ring Adapts your Pentax K camera to M42 T Thread.   In the Box Antares M42 Pentax K T-Ring Warranty & Manuals Antares...

Antares M42 Nikon T-Ring Adapts your Nikon camera to M42 T Thread.   In the Box Antares M42 Nikon T-Ring Warranty & Manuals Antares 1-Year W...

Antares M42 Minolta AF T-Ring Adapts your Minolta autofocus camera to M42 T Thread.   In the Box Antares M42 Minolta AF T-Ring Warranty & Ma...

Antares M42 Canon T-Ring Adapts your Canon camera to M42 T Thread.   In the Box Antares M42 Canon T-Ring Warranty & Manuals Antares 1-Year W...

Antares M42 25mm Camera Extender Adapter T2-EXT25 extends M42 T-thread by 25mm.   In the Box Antares M42 25mm Camera Extender Adapter Warranty &a...

Antares M42 10mm Camera Extender Adapter T2-EXT10 extends M42 T-thread by 10mm.   In the Box Antares M42 10mm Camera Extender Adapter Warranty &a...

Antares Dust Cap For Camera M42x0.75mm Keep the dust out of your DSLR. Just thread this in when not in use and you're good. In the Box Antares Dust...

ZWO M42 Adapter for OAG The ZWO M42 Adapter for OAG is a T2 adapter that allows you to connect your main imaging camera to your ZWO OAG. It is incl...

William Optics Camera Angle Rotator for 2.5" M63 Focuser All New William Optics Camera Angle Rotator for 2.5" M63 Focuser Fits : Z73, Z103, Z126...