Spacers & Extensions

Baader 2" BDS Steeltrack® M48a Adapter (BPS582M48)

The Baader 2" BDS Steeltrack® M48a Adapter is used in place of the 2” ClickLock® eyepi

BAADER 2" BDS Steeltrack® T-2a Adapter (BPS582T2)

The Baader 2" BDS Steeltrack® T-2a Adapter is used in place of the 2” ClickLock® eyepi

Baader 2” Stop-ring with Brass Clamping Ring and Thumb Screws (BP2SR)

The Baader 2” stop-ring is used as a spacer to prevent the barrel of 2” eyepieces from i

Astro-Physics

27.0mm Extension for 2.7" Thread (EXT27-27.0)

We offer a series of extensions is designed to utilize the robust 2.7" Astro-Physics thread size, wh

Astro-Physics

64.8mm Extension for 2.7" Thread (EXT27-64.8)

We offer a series of extensions is designed to utilize the robust 2.7" Astro-Physics thread size, wh

Astro-Physics

44.5mm Extension for 2.7" Thread (EXT27-44.5)

We offer a series of extensions is designed to utilize the robust 2.7" Astro-Physics thread size, wh

Astro-Physics

31.8mm Extension for 2.7" Thread (EXT27-31.8)

We offer a series of extensions is designed to utilize the robust 2.7" Astro-Physics thread size, wh

Astro-Physics

22.9mm Extension for 2.7" Thread (EXT27-22.9)

We offer a series of extensions is designed to utilize the robust 2.7" Astro-Physics thread size, wh

Astro-Physics

19.1 mm Extension for 2.7" Thread (EXT27-19.1)

We offer a series of extensions is designed to utilize the robust 2.7" Astro-Physics thread size, wh

Astro-Physics

15.2mm Extension for 2.7" Thread (EXT27-15.2)

We offer a series of extensions is designed to utilize the robust 2.7" Astro-Physics thread size, wh

Astro-Physics

2" Nosepiece Extension with 48mm Threads (EXT48-12.7)

This ½" extension is a robust version of T-thread extension tubes. It uses 48 mm threads at b

Astro-Physics

Threaded 2.7" Barlow Holder with Internal 42mm Thread (BH27-INT42)

Realize the full potential of your Baader Fluorite Flatfield Converter (BPFFC) or 2" Advanced Conver

Astro-Physics

3.27" Backfocus Spacer Extensions for Astro-Physics Focusers and Accessories (EXT327-)

When purchasing the QUADTCC, 110TCC or other other accessories you may need to add the proper l

Astro-Physics

2.7" Spacer Rings , Set of 3 Rings (SRSET-27)

In most imaging setups it will not be necessary to modify the spacing distance.  However, there

Astro-Physics

3.27" Spacer Rings , Set of 3 Rings (SRSET-327)

In most imaging setups, it will not be necessary to modify the spacing distance.  However, ther

Astro-Physics

Allows 2.7" Accessories to be Attached to the 3.27" Threads of CCD Flatteners & Telecompressor Correctors (ADA327-27)

We have added several adapters to assist imagers obtain back spacing distances for their camera syst

Baader Planetarium

Reducing-Ring 2"i / T-2a with 1.5mm optical length (BPR2T2-15)

Low profile adapter 2"i to T-2a, featuring just 1.5mm optical length changes a 2" SC (50,8mm

Baader Planetarium

Click-Lock Eyepiece Clamp 1.25"/T-2 with built-in diopter-adjustment (BP8)

Precise focusing eyepiece holder 1¼"/T-2 (5mm focus travel) Requires only a slight turn of

Baader Planetarium

Baader Heavy-Duty Quick Changing System, includes BP6A and BP7 (BP6A/7)

Heavy duty quick change system - clamping for heavy accessories with large brass clamp T-Quick Ch

Baader Planetarium

Expansion Ring T-2 /48mm with 2.5mm optical path length (BP29)

T-2 / M48 extension converts M48 female into T-2 female thread) Focuser side 48mm / 2" external t

Baader Planetarium

Expansion Ring T-2i /2"a with 1mm optical path length (BP28)

Adapter Ring 2" outer thread to T-2 internal thread Advances T-2 male on 2" male Only 1mm optica

Baader Planetarium

Adapter 2" (male) /T-2 (male) with M48 Thread (BP27)

Adapter ring with 2" external thread and T-2 external thread Changes a 2" (50.8mm) inner thread t

Baader Planetarium

T-2/T-2 Inverter Ring (BP26)

Changes a T-2 female into a T-2 male thread Optical path length is zero. Free of reflections

Baader Planetarium

Variable Locking/Sliding T-2 Focuser (BP24)

For 1.25" eyepieces or OAG cameras. 10mm focus travel Telescope side T-2 (M42x0.75 internal threa

Baader Planetarium

Adapter M43/T-2, Vixen (BP22)

Telescope side internal thread 43mm (Vixen) Focuser side T-2 external thread Shortest connection

Baader Planetarium

C8 T-Adapter, short/16mm (BP21)

A widefield camera adapter for all Schmidt-Cassegrain Celestron/Meade telescope tubes. Allows T-2

Baader Planetarium

2"/2" Inverter Ring with 48mm Filter Thread (BP2/21)

Converts 2" female into 2" male thread Internal M48 Filter thread for 2" filter

Baader Planetarium

2" Deluxe Clamp Eyepiece Holder for SCTs (BP17)

SCT visual back with 2" SCT internal female thread but without 2" Filter holder Precise 2" clamp

Baader Planetarium

Reducer 2"/ 1.25" with T-2 Thread (BP15)

2" external thread to 1 ¼" internal thread reducter / eyepiece adaptor Strong grip with 2

Baader Planetarium

Nose piece 1.25"/T-2 (BP14)

1¼" nosepiece with T-2 thread and M28.5 filterholder Barrel with 24mm Insertion and securi

Astro-Physics

2"/T-2 Adapter attaches to T-thread (ADAT2)

This 2"/T-2 Adapter with brass locking ring is manufactured by Astro-Physics. It is used with the Ba

Baader Planetarium

Baader T-2 Quick Change Ring (BP7)

T-2 external thread with Zeiss micro bayonet Bayonet ring made from hardened steel Quick release

Baader Planetarium

T-2 Extention Tubes

The Baader T-2 Extension Tubes are available in three lengths: 40 mm (BP25B), 15 mm (BP25A) and 7.5

Astro-Physics

4" to 3.5" Adapter with Thumbscrews for 4" Focuser to use 3.5" TCC or FF (ADA435)

The ADA435 adapter will allow owners of Astro-Physics refractors with 4” focusers to use the f

Astro-Physics

Extension with Brass Locking Ring for 4" Focuser (4FOCEXT)

This accessory provides 2.2" of extension with an overall length of 3". It is typically used in lieu

Astro-Physics

2" Extension Tube with Brass Locking Ring, 1.75" long, 48mm threads (ADA202)

This extension slips into a 2" opening and can be used with 2" accessories or the 1.25" adapter. It