There has obviously been ongoing conversation about when Canon would open up the RF mount for companies like SIGMA and Tamron. While we have had confirmation that SIGMA has interest in making lenses for the RF mount, they have given no timeline.
An unknown source has reached out a couple of times about this topic and seem pretty confident that it will happen in the next 6-8 months. The source claims two lenses would initially be a launched, a midrange fast prime lens and a zoom lens of some kind.
No exact information about what these lenses are were given at this time, but I imagine SIGMA has a few designs in the works as they work out the legal things with Canon Inc.
If we had to guess what sort of lenses we’ll see first, again… just guessing. We’d think the following two lenses make sense from a business standpoint for both companies.
- Sigma 50mm f/1.4 (I won’t guess on ART or Contemporary)
I don’t think we’d see fast wide angle primes from SIGMA before Canon. Canon has also shown us over the decades, they have no interest in making a new 50mm f/1.4. - Sigma 17-50mm f/2.8 OS DC
I think a “fast” RF-S mount zoom would be the most likely out of the gate.
We would not expect much, if any crossover of focal ranges and speed for a long while from Sigma for the RF mount.
This information comes from an unknown source, so please treat it accordingly. We hope that we’re going to hear more definitive information in the coming month or two.
We’ve had no word about Tamron.
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