Tamron AF Teleconverter 1.4x TCX14E Canon
Teleconverter, Canon EF
Tamron AF Teleconverter 1.4x TCX14E Canon
Teleconverter, Canon EF
According to the answer from the supplier, if the connection is correct (bayonet), there is no known limitation with this combination. :)
Since the firmware upgrade to v2 for the 150-600 and 70-200 it's been much better