Quick view Astro-Physics 27.0mm Extension for 2.7" Thread (EXT27-27) We offer a series of extensions is designed to utilize the robust 2.7" Astro-Physics thread size, wh MSRP: Was: Now: $53.00 Add to Cart
Quick view 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 MSRP: Was: Now: $69.00 Add to Cart
Quick view 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 MSRP: Was: Now: $57.00 Add to Cart
Quick view 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 MSRP: Was: Now: $53.00 Add to Cart
Quick view 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 MSRP: Was: Now: $48.00
Quick view 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 MSRP: Was: Now: $48.00 Add to Cart
Quick view 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 MSRP: Was: Now: $48.00
Quick view 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 MSRP: Was: Now: $55.00 Add to Cart
Quick view 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 MSRP: Was: Now: $69.00 Add to Cart
Quick view 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 MSRP: Was: Now: $92.00 Options
Quick view 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 MSRP: Was: Now: $29.00 Add to Cart
Quick view 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 MSRP: Was: Now: $29.00 Add to Cart
Quick view Astro-Physics Step-Down Adapter with 2.7" Male Threads to 48mm Male Threads (ADA27-48) We have designed a series of adapters to assist imagers obtain back spacing distances for their came MSRP: Was: Now: $86.00 Add to Cart
Quick view 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 new adapters to assist imagers obtain back spacing distances for their camera MSRP: Was: Now: $75.00 Add to Cart
Quick view Astro-Physics Step-Down Adapter with 2.7" Male Threads to 2.156" Male Threads (ADA27-2156) We have designed a series of adapters to assist imagers obtain back spacing distances for their came MSRP: Was: Now: $63.00 Add to Cart
Quick view Astro-Physics Step-Down Adapter with 2.7" Male Threads to 42mm Male Threads (ADA27-42) We have designed a series of adapters to assist imagers obtain back spacing distances for their came MSRP: Was: Now: $86.00 Add to Cart
Quick view 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 MSRP: Was: Now: $36.00 Add to Cart
Quick view 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 MSRP: Was: Now: $94.00 Add to Cart
Quick view 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 MSRP: Was: Now: $136.00 Add to Cart
Quick view Baader Planetarium Ultrashort 2" Eyepiece Clamp for Vixen M60 and Zeiss M68 (BP32) Eyepiece clamp (12 mm backfocus) Both sides of the clamp are equipped with M68 male threads Inte MSRP: Was: Now: $80.00
Quick view 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 MSRP: Was: Now: $39.00 Add to Cart
Quick view 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 MSRP: Was: Now: $45.00 Add to Cart
Quick view 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 MSRP: Was: Now: $45.00 Add to Cart
Quick view 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 MSRP: Was: Now: $36.00 Add to Cart
Quick view 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 MSRP: Was: Now: $44.00 Add to Cart
Quick view Baader Planetarium Adapter M43/T-2, Vixen (BP22) Telescope side internal thread 43mm (Vixen) Focuser side T-2 external thread Shortest connection MSRP: Was: Now: $45.00 Add to Cart
Quick view Baader Planetarium C8 T-Adapter, short/16mm (BP21) A widefield camera adapter for all Schmidt-Cassegrain Celestron/Meade telescope tubes. Allows T-2 MSRP: Was: Now: $57.00 Add to Cart
Quick view 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 MSRP: Was: Now: $44.00 Add to Cart
Quick view 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 MSRP: Was: Now: $64.00
Quick view 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 MSRP: Was: Now: $52.00 Add to Cart
Quick view 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 MSRP: Was: Now: $45.00 Add to Cart
Quick view 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 MSRP: Was: Now: $63.00 Add to Cart
Quick view 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 MSRP: Was: Now: $47.00 Add to Cart
Quick view 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 MSRP: Was: Now: $27.00 Options
Quick view Astro-Physics 4" to 3.5" Adapter with Thumbscrews for 4" Focuser to use QUADTCC (ADA435) Use the 0.72x QuadTCC or 3.5" Field Flattener with your 4” Focuser! This adapter will allow o MSRP: Was: Now: $169.00 Add to Cart
Quick view 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 MSRP: Was: Now: $149.00 Add to Cart
Quick view 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 MSRP: Was: Now: $86.00 Add to Cart
Quick view Astro-Physics 2" Extension Tube with Brass Locking Ring, 3.6" long (EXTTLR) Use this extension when you require additional length. It slips into a 2" opening and can be used wi MSRP: Was: Now: $132.00 Add to Cart
Quick view Astro-Physics 17.0mm Backfocus Spacer - part of QUADTCC-TEC160 (A5022) May 31, 2021 - Part # changed to EXT327-17.0 to more clearly describe its function. T
