If there's one thing that makes long-time Canon users twitchy about making the jump to Sony, it's glass. Switching systems can be an expensive decision, and the cost of Sony's lenses only makes this worse. "What about adapters?" you might ask. In this video, photographer Jason Lanier tackles that question head-on and gives his verdict.
With the Sony a7 III making it even harder for DSLR users to ignore the shift to mirrorless, many photographers are wondering how they can make that transition without having to swap not only a body or two, but also an entire fleet of lenses. For Canon users, making this jump might feel a little easier: if the apparent lack of innovation from Canon isn't enough, the adapters that are available could make switching systems relatively painless.
In his rather distinctive style, Sony "Artisan of Imagery" (a.k.a. ambassador) Jason Lanier is blown away by the autofocus performance when using Canon lenses to shoot stills using an adapter. In this case, the Sigma MC-11 certainly seems to do an incredible job in various AF modes, notably with the Canon EF 135mm f/2 and the EF 85mm f/1.2 — wide open. Personally, I'm keen to see if this performance holds up with Canon's zoom lenses, particularly the EF 16-35mm f/2.8.
So if autofocus performance when adapting Canon lenses is not really a concern, what's preventing Canon users from making the jump? Possibly ergonomics, color science, after-sales care, resale value, and a general lack of availability outside of bigger markets are factors to consider. Throw in the button layout, a lack of budget lenses, and a car crash of a menu system, and there might be enough to give many photographers second thoughts.
Be warned: In this video, things go a bit weird, especially during the last three minutes. That said, this is Jason Lanier, so what do you expect?