In April of this year, Tamron announced that it was developing its first autofocus lens for Canon RF mount – the Tamron 11-20mm f/2.8 Di III-A RXD. Now, with the official release scheduled for ...

It appears that Canon has just loosened the stranglehold, though, as Tamron has announced the development of its first RF lens – with autofocus – and Sigma is set to follow suit later in the year.

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