Adapters, Spacer Rings & Extensions

Antares Twist-Lock Adapter 2" To 2.25" Extension ET2TL extends any 2" accessory by 2.25" with twist-lock retainer. Works with any type of barrel: s...

Antares Twist-Lock Adapter 2" To 1.75" Extension ET1.5TL extends any 2" accessory by 1.75" with twist-lock retainer. Works with any barrel design: ...

Antares Roof Prism Binocular Adapter For Tripod BTARP is a really strong L-Bracket to hold your roof prism binoculars to a tripod or mounting. Made...

Antares M42 5mm Camera Extender Adapter T2-EXT5 extends M42 T-thread by 5mm.   In the Box Antares M42 5mm Camera Extender Adapter Warranty & ...

Astronomy Plus 2'' to M54 and M48 Male Nosepiece Used to fix your M54 or M48 imaging train to a 2'' visual back. Prevents vignetting that an M42 eq...

Astronomy Plus 2 Inch Extension Tube  Extends the distance between the visual back and accessories.  Available in three lengths :  40mm 50mm 60mm ...

Astronomy Plus 1.25'' 25mm Extension Tube Creates space between the telescope visual back and the accessories. 25mm aluminum extension.  Technical ...

IDAS M54 Filter Holder for RASA 8 The IDAS M54 OL7.5 frame holds the IDAS filters series, and is an frame adapter with an optical path length of 7....

IDAS M42 Filter Holder for RASA 8 The IDAS M42 OL7.5 frame holds the IDAS filters series, and is an frame adapter with an optical path length of 7....

Baader Adapter D60 (Pentax) to 2" Nosepiece With 2" bronze pressure ring and 30.5mm length, 60mm outer diameter This reducer fits onto every 2" ba...

Wanderer Astro RASA36 Adapter for Wanderer FilterCube   If you plan to install the Wanderer FilterCube on a RASA 36, this adapter kit is mandatory....

Wanderer Astro Filter Shim for 50mm Unmounted Filters for SFW50/50S   The Filter Shim for 50 mm Unmounted Filters is designed for the SFW50 and SFW...

Wanderer Astro Takahashi FSQ106 645 0.72X Reducer Adapter  for WandererRotator Pro and Pro V2   The Wanderer Astro Takahashi FSQ106 645 0.72× Reduc...

Wanderer Astro SharpStar RC2508 Reducer Adapter Kits for WandererRotator Lite and Lite V2   The SharpStar RC2508 Reducer Adapter Kit allows the Sha...

 Baader Pentax Adapter M84/M68 To fit #2458196 Ultrashort 2" clamp onto Pentax OTA Pentax Adapter M84 / M68 Telescope side with Carl Zeiss M68 Pen...

Baader 2" NX4 (C90) / ETX Expanding Ring Converts NexStar4 straight male thread into 2" SCT male thread ETX Extension ring Incl. 1.25" "filter hol...

Baader S58/ M68a Short Adapter (for Baches and 2" Mirror-/Prism-Diagonal) The Baader S58/M68a Adapter (Short) facilitates secure connections betwee...

Baader Adapter M82/M68 Adapter M82/M68 Reducer ring for Baader 3" Hyperion Focuser Learn more about the Baader M68 Tele-Compendium Technical Spec...

Baader Adapter M68i to M75a Adapter with M68i x1 to M75a x1 male thread, to adapt M68 parts to Starlight Instruments Feathertouch 3.0" focusers wi...

Baader Adapter M54i to S52a With the S52a/M54i adapter, all Baader Wide T-rings can be adapted directly to an M54 male thread. This makes it possi...

Baader M54 Heavy Duty QuickChanging System  Heavy Duty M54 Quick Changing System enables lightning-fast changes between cameras, filter wheels or ...

Baader Reducing ring M48a / T-2a Changer / Reducing Ring M48 to T-2 with M48 male thread Changes the M48 female thread of a adapter into a T-2 mal...

Baader M48 Quick Changing Ring M48 male thread quick coupler with 50 mm dovetail Creates a quick change and rotating device with standard load cap...

Baader M48 Heavy Duty Quick Changer  M48 female thread Heavy Duty Quick Changer Creates with the Baader M48 Quick Changing Ring (#2958595) a quick...

Baader 2"a / M48i Zero-Length Reducing Piece Converts any 2" (SC) female thread into a M48 x 0.75 female thread- without extending the optical len...

Baader M41 Eyepiece-Adapter for Kowa TSN 770 / 880 Spotting Scopes 1.25" / M41 eyepiece clamp for Kowa spotting scopes enables connection of all B...

Adapter M68i to M74i (Skywatcher Esprit, TS-Optics, Omegon) Adapter with M68i x1 to M74i x1 female threads, to adapt M68 parts to focusers with M7...

Baader Adapter M68i to M63a (Feathertouch 2.5", TS-Optics) Adapter with M68i x1 to M63a x1 male thread, to adapt M68 parts to Starlight Instrumen...

Baader Expansion Ring M55 to M68 Reducing piece: M68a to M62a for direct connection of M62 accessories (e.g. QHY Color Filter Wheel (CFW 3) (vario...

Baader Expansion Ring M55 to M68  Expansion Ring M55ext to M68int This adapter allows you to change your Baader 2" Diagonal Mirror (# 2456115, 2456...

Baader Reducer M68 external to M54 External Reducing piece: M68a to M54a for direct connection of M54 accessories (e.g. QHY Color Filter Wheel (CF...

Baader Reducer M68 External to M48 External  Reducing piece: M68 external to M48external for direct connection of M48 accessories to the M68 syste...

Baader M68a to FLI-Dovetail Adapter Baader M68ext x 1 to FLI adapter flange Telescope-sided with M68 (Zeiss) male thread, to connect all parts of ...

Baader M68a / 2,7"i Adapter (Zeiss / Astro Physics) Adapter 2.7"i UNF/24G (Astro Physics) to M68ext x 1 (Zeiss) Reducer: converts an AP 2.7 extern...

Baader M68int / 2,7"ext Adapter (Zeiss / Astro Physics) Adapter 2.7"a UNF/24G (Astro Physics) to M68int x 1 (Zeiss) Reducing piece: converts an AP...

Baader M68 VariLock 15-20mm Extension Baader M68 VariLock Extension 15-20mm Continuosly (stepless) adaptable M68 extension with millimeter scale f...