William Optics - High Precision “COPPER“ 48mm T-Ring for Canon EOS Full Frame Cameras | Telescopes
Baader Protective CANON DSLR T ring with built-in 50.4 x 3mm clear glass dust protection
Wide (48mm) & Short (10mm) T-Ring for Canon EOS RF - TelescopeAdapters
t ring for canon off 61% - www.daralnahda.com
T2 T Ring Adapter and T Adapter 1.25'' Metal for All Canon EOS Standard EF Lenses and Telescope Camera Astrophotograp Accessorie|Monocular/Binoculars| - AliExpress
Alpine Astronomical Baader Wide T-Ring Set for Can TRING-CRW B&H
Low Profile T-Ring - Canon
T-Ring for Canon EOS "M" Mirrorless Cameras (TEOSM) - TelescopeAdapters
Orion T-Ring, Canon EOS
Stellarvue 48mm Canon EOS T-Ring
Celestron T-Ring for Canon EOS EF SLR or DSLR Cameras