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New Sigma patent discloses the design of a new L-mount 300mm f/2.8 telephoto lenses

Optical design of the 300mm f/2.8 L

A new Sigma patent published today unveils the specs of this Sigma 300mm f/2.8 for L and Sony E

Here are the lens specs (Note: CL means with 1.4x teleconverter attached):

Now usually patents are no guarantee that it will make it into final production. But knowing Sigma’s history I am confident we are going to get this lens for real.

via Asobinet. Thanks Lu!

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