T-Rings, Spacers & Thread Adapters

Four-piece M48 extension tube kit Includes 5mm, 10mm, 15mm, and 30mm lengths Standard M48x0.75 male and female threads Stackable design for custom...

Variable Extension Range: 24mm to 35mm Thread Type: M48x0.75 Male & Female Replaces Multiple Fixed Spacer Rings Internal Anti-Reflection Baffl...

Variable Extension Range: 24mm to 35mm Male Thread: M42*0.75 (T2-thread) Female Thread: M42*0.75 (T2-thread) All-Metal Construction Black Anodized...

Includes four M42 extension tubes: 5mm, 10mm, 15mm, and 20mm Standard M42x0.75mm T2 male and female threads Stackable to achieve combined lengths ...

Connects SCT Telescopes to T-Thread Cameras Male Thread: Standard SCT Female Thread: M42x0.75 T-Thread Extension Travel: 30mm (1.18 inches) Net We...

Connects Nikon AF-Mount Lenses to any 1.25" Eyepiece Focuser Durable Aluminum Alloy Construction Lightweight Design at only 137g (4.84oz) Standard...

Adapts Canon EF and EF-S mount lenses to 1.25" astronomy accessories Enables use of high-quality camera lenses for wide-field astrophotography Acc...

Converts M48 Female Threads to M42 Male T-Threads Enables Connection of M42 T-Rings and Accessories to M48 Correctors Knurled Exterior for a Secur...

Securely connects 1.25" focal reducers to C-mount cameras All-metal construction prevents flexure and maintains alignment Eliminates loose connect...

Adapts 2" (50.8mm) focusers to M42*0.75 T-threads Connects SLR/DSLR cameras via a standard T-Ring Features female M48*0.75 threads for 2" filters ...

Achieve Prime Focus with SLR/DSLR Cameras Provides Necessary Focuser Extension All-Metal Aluminum Construction Lightweight and Durable Design Wide...

Connects M42 T-thread cameras to 1.25" focusers Standard M42 x 0.75 male threads Fits any telescope with a 1.25" eyepiece holder Lightweight desig...

Adds 67 mm of optical length to your imaging train Features M92 male and female threads for a secure connection Designed for William Optics FLT 11...

Connects William Optics FLT91 Telescope to Flat6AIII Flattener Input Thread: M92 Male Output Thread: M63 Female Optical Path Length: 10.5 mm De...

Provides a precise 54mm of optical length Connects the FLAT68III flattener to M48 imaging trains Designed specifically for the William Optics Gran...

30mm Optical Length Connects M80 x 0.75 to M54 x 0.75 Threads For William Optics Flat68III & Flat7A Flatteners Description FAQ Specificatio...

Provides ±2mm of fine backfocus adjustment Total optical length adjustable from 16mm to 20mm High-precision 0.05mm increments Available with M54 o...

Connects M48 (2-inch) accessories to the Askar FMA180 Converts the native M42x0.75 T-thread to a larger M48x0.75 thread Engineered for a precise f...

Connection (Telescope Side): Tele Vue 2.4" Female Thread Connection (Filter Side): M48x0.75 Male Thread (Standard 2" Filter Thread) Application: T...

Achieve Precise Back Focus for Tele Vue Imaging Systems Includes Four Threaded Extension Tubes (6.4mm, 9.5mm, 12.7mm, 25.4mm) Includes Two Unthrea...

Extension Provided: 1mm (TLF-0040) Extension Provided: 2mm (TLG-0080) System Compatibility: Tele Vue 2.4" Imaging System Connection Type: 2.4" Thr...

Extension Length: 2mm (0.080") Connection Type: Tele Vue 2.4" Proprietary Thread Format: Accessory Tube Material: Black Anodized Aluminum Compatib...

Extension Provided: 1mm (0.040") Accessory Standard: Tele Vue 2.4" Imaging System Connection Type: Threaded Material: Black Anodized Aluminum Oute...

Extension Length: 1.0" (25.4mm) Format: Tele Vue 2.4" Imaging System Connection Side 1: 2.4" Male Thread Connection Side 2: 2.4" Female Thread Mat...