Third Party Lenses

Tamron adds EOS R support for the 100-400mm f/4.5-6.3 Di VC USD

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Tamron has released firmware v3 for the Tamron 100-400mm f/4.5-6.3 Di VC USD.

From Tamron:

A035 100-400mm F/4.5-6.3 Di VC USD Canon Firmware Ver.3:

  • Enable general operations on Canon EOS R by the firmware updating.

NOTE: Canon Mount Adapter EF-EOS R is required to attach the lens to Canon EOS R. 


Stay at home
CR Pro
Aug 16, 2012
Has anyone had any success with this lens on a DSLR? I bought one on the basis of very good reviews about its AF as I wanted a light lens. But, mine was a lemon both for its poor IQ and hopeless tracking of BIF, as well as poor IS. Maybe I was unlucky but I sent it back but was told it was within spec, and so I sold it. It did perform better on an M5.

Deleted member 378664

I don't do BIF. But I am under the Impression, that my Tamron 100-400 works fine on both my cameras the EOS M5 and the EOS 6DMII.
As far as I have seen Firmware Ver. 2 should have dealed with some IS issues. Have you updated the Firmware on your lens?
Just recently I send mine to Tamron for Firmware update as I do not have the TAP in Console. As it is my only Tamron lens so far, it is cheaper for me to send the lens to the Tamron Service (~6 Euros, instead of paying ~70 Euros for the console).
Unfortunately I send it to Tamron some days before this announcement of Ver. 3. Now I do not know if I already have Ver.3 flashed on my lens.

Does anybody know, if I'm able to find out the Firmware Version on my own without having the TAP in console?


Dec 17, 2013
I tried it as well and was complete mush. Soft and poor AF, even with the included Tap In. Returned it to B&H within the return period. Dustin gave it glowing remarks but as with everything, YMMV. Still looking for the 100-400 that isn't with the Canon price tag that fits my budget and style. (It doesn't exist)