I have a question that I couldn't find an answer to on this forum.
If I have a fast lens (say 135L f/2) and add a 2X non-reporting TC, how would the auto focus compare to adding a reporting 2X?
The reason I ask is because with the non-reporting, the high precision sensor (activated at f/2.8 or wider) would be used by the camera because it thinks there is an f/2 lens attached.
With the reporting TC, the camera knows the aperture is f/4 and knows not to even try with the high precision.
So, from an AF point of view, would I be better off with a reporting TC, or will that not make a difference?