I'm using a Sony A7 II with adapter with a Canon EF 24-70mm f/2.8L and a Canon 16-35mm f/2.8L both with the same settings, but the exposure on the 24-70mm is darker in the manual and action modes, but in automatic and portrait it shoots completely fine only with a bit of lag.
I tried detaching the connection between the lens and the body and just slightly connecting them to generate a image; I think there's something wrong with the lens. Like it has gone really dark for some reason.
I have a feeling that something in the lens needs to be fixed.
Any advice or help to fix it would greatly be appreciated.
I don't think the body/adapter is the issue, as I have also tried it on my Canon 60D, and the same issue occurs.