Tried a Sigma 105mm with Sigma ringflash and on a canon 450d the inbuilt lens motor was not enough to allow autofocus with the flash attached. It had to be manually focussed. Can people confirm if this is the case with them?
However with the same ringflash and a tamron lens (body driven) on a nikon D200, the lens could autofocus.
Does anyone know if a tamron lens (canon mount) would be able to autofocus with the flash?
However with the same ringflash and a tamron lens (body driven) on a nikon D200, the lens could autofocus.
Does anyone know if a tamron lens (canon mount) would be able to autofocus with the flash?