10-years ago I bought into the EF-S/EF platform. Thrifted a lot of film era EF lenses, bought used EF-s Lenses for cheap ($20 for that 28mm one)

camera body got upgraded twice over the years, lived on a tripod and took hundreds of product photos for ebay....

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what is the modern day future proof camera mount?

Is it the Arri PL mount? I heard even RED moved over to those as well over the years?