TAMRON 35mm f/1.4 For Canon EF mount. Operation has been confirmed. I was able to use it without any problems on the EOS R6 and R6 Mark II using the EF-RF genuine adapter. I chose this lens because I preferred the image quality compared to Canon's genuine lenses. The three-dimensional effect and bokeh in the mid-range have a unique atmosphere that can only be achieved with this focal length and f/1.4 aperture. The focus ring has some white marks, so please refrain from purchasing if you are looking for a pristine item. I am selling this lens because I am switching to RF lenses. Please feel free to ask if you would like photos from different angles. Thank you very much.