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09-28-2025, 09:00 PM
I just got Tamron 70-200f2.8, it's working perfectly well on 7D2, however on EOSRP and on R100 it refuses to focus whatever I do, the camera will always show manual focus.
I tried both Canon and third party adapters same result. Anyone has experienced any similar compatibility issues ??
09-29-2025, 06:37 AM
(This post was last modified: 09-29-2025, 06:38 AM by davethebirder.)
Sounds like an appropriate FW update is needed .... contact Tamron service/Canon Service
09-30-2025, 02:24 AM
This is more about the adapter than anything else.
Neither Canon nor Tamron officially support adapters to 3rd-party lenses/adapters.
Chief Editor - opticallimits.com
Doing all things Canon, MFT, Sony and Fuji
09-30-2025, 08:14 AM
To my knowledge RF to EF adapters are just extension tubes, Canon did it several times in the past, they made their feelings towards third party lenses clear, and I have everything to suspect they are doing it again
09-30-2025, 11:35 AM
Well, Canon will just argue that they never supplied a license to Tamron.
They still stick to this today. I reckon we won't see third-party FF lenses until 2028.
Chief Editor - opticallimits.com
Doing all things Canon, MFT, Sony and Fuji |
