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Will Canon allow EF lenses to work on future RF bodies?

Started 1 month ago | Discussions thread
Sittatunga Veteran Member • Posts: 5,406
Re: Will Canon allow EF lenses to work on future RF bodies?

EmotionBlur wrote:

Sittatunga wrote:

Having said that, I can't find an instance where Canon have ever licensed the EF lens patents for stills camera lenses; all the third-party manufacturers have had to reverse engineer their lenses. So I'm sure that "something" is one of them managing to produce an RF mount lens that doesn't infringe Canon's patents.

So far, bad luck. Unlike EF mount, it seems that the AF patent can't be bypassed so easily. Rokinon/Samyang had to pull some of their RF mount AF lenses because of that.

It's not necessarily going to be quick.  In 2016, nearly 30 years after they launched EF lenses, Canon were warning people not to use Sigma Art lenses with peripheral illumination correction enabled because of those odd concentric circles that produced.  Canon aren't likely to help with reverse engineering either as gettingthat right isn't Canon's problem at all. .

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