This larger than standard size, wide 48mm diameter T-ring supports full 35mm format Canon cameras. Not compatible with standard T-threaded accessories.
Couples camera body to wide, M48 48mm T-threads on Focal Reducers for Orion ED refractors and Field Flatteners for EON 115mm and 130mm refractor telescopes
Fits all Canon EOS 35mm DSLR or SLR cameras
Required for use with focal-reducer and corrector lenses and field flatteners for Orion ED80, ED100, EON 115mm and EON 130mm refractors
Compatible with wide format 48mm T-threaded accessories only. Not compatible with standard (42mm) T-threaded camera adapters.
A wide T-ring converts a DSLR camera body's bayonet mount to a wide-format (M48), female T-thread, allowing attachment of the camera to accessories such as field flatteners, reducers, and spacer rings that utilize the M48 thread. This T-ring, designed to fit Canon EOS cameras, features M48 (48mm x 0.75) threads. Wider than standard M42 T-rings, this T-ring reduces vignetting, especially in full-frame (35mm format) cameras. Length (thickness) of the T-ring is 10.9mm. Made of machined aluminum and black anodized.