Tamron has released a firmware update for the SP 150-600mm f/5-6.3 Di VC USD G2 to add Canon EOS R support.
A022 SP 150-600mm F/5-6.3 Di VC USD G2 Ver.2:
- Enable general operations on Canon EOS R with Mount Adapter EF-EOS R by the firmware updating.
[NOTE] Canon Mount Adapter EF-EOS R is required to attach the lens to Canon EOS R.
You can download the firmware here.
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The lens has to be sent to and updated by Tamron.
Source: https://www.tamron.jp/en/support/azukari.html
This is due to the fact that the Tamron 150-600mm model A011 was introduced right before Tamron announced and started manufacturing their upgraded SP line of lenses and introduced their "Dock" at the same time. This model A011 and their big hit lens, the 15-30mm f2.8 VC (G1) were both very popular and good lenses but released months before the Dock and the new SP lineup.
(Sigma did the same thing when they introduced the rebranding of their lenses with the Global Vision line up: Contemporary, Art, and Sport series.)
But most, if not all of you, already know/are-aware of this...
On my Oly, to update the lens firmware you mount the lens on the camera, connect the camera to a computer, and run the Olympus viewer/editor software. If it detects that an update is available, it downloads it onto the computer and then installs it onto the lens. No docks. No shipping out.
They have had this ability for at least 15 years and I don’t understand why nobody else does it.......
https://www.usa.canon.com/internet/...tm/ef-40mm-f2-8-stm?subtab=downloads-firmware
In the situation with updating your Olympus lenses though, it's all Oly equipment, including the camera correct? I wonder if you could do that with say a Panasonic M4/3 lens mounted on your Oly camera? I'm guessing that you could not do that. Or conversely if your Oly lens was mounted on a Panasonic G9 or G85, etc, you could not update it that way either... But who knows?
I know that I wouldn't be keen on having a Tamron or Sigma lens attached to my Canon camera body and try and run a software update to the lens this way - thru the camera body. If it would even work, which my money would be on it not being possible...