Thanks Ian for your response. However, I am not happy with the solution since this is a workaround and not a real fix. It looks like Tamron has changed something in the firmware that prevents the lens ID from being recognized in LR or PS. This means it is a regression (in software terms, as I am a software engineer) and needs to be fixed urgently. Or a wrong firmware has been flashed. This is an (relatively) expensive lens and always had been correctly detected in LR or PS and I am unimpressed if the new firmware causes this.
... View more