SVBONY 1.25" CA1 Extension Tube M42 Thread T-Mount Adapter
T2 Ring for Nikon DSLR/SLR Camera Lens Adapter
T2 Ring for Canon DSLR/SLR Camera Lens Adapter
For Canon:
This T-Ring attaches to all Canon SLR and DSLR camera bodies including (digital models) 1D (all), 5D (all), 6D, 7D, 10D, 20D, 20Da, 30D, 40D, 50D, 60D, 60Da, 70D, 100D, 300D, 350D, 400D, 450D, 500D, 550D, 600D, 650D, 700D, 1000D, 1100D, D30, D50, D60, Rebel, Rebel XT, Rebel XTi, Rebel XS, Rebel XSi, Rebel T1, Rebel T1i, Rebel T2. Rebel T2i, Rebel T3, Rebel T3i, Rebel T4, Rebel T4i, Rebel T5, Rebel T5i, X6i, SL1.
Note: it doesn't fit EOS-M models