Wide (48mm) T-Ring for Sony Alpha DSLR (A-Mount - Full Size DSLR).
Custom made "WIDE" T-Ring fits 48mm (.75 pitch) threaded adapters. These quality T-Rings are CNC machined of aluminum with a durable black anodized finish. Fits all Canon EOS M Cameras (EF-M Mount, M10, M50, etc). For 48mm only! This is a SHORT Ring Only 10mm Deep. This gives you over an inch of extra Back-Focus!