This is not the traditional EF mount. It’s the IBE optics UMS EF converter. You can basically use the lens with many other mounts without the fear of image shift or back focus issues. Comes with case and caps. Message me if you have an offer and I can end the auction as long as it’s early and it doesn’t have bids.
https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.com/ulk/itm/264537712716
https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.com/ulk/itm/264537712716
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