Im using a canon 80D and i have a 70-200m f/2.8 that goes down to 2.8 on the same body, there is no extender. I’ve tried both lenses on a different body and yhe same effect. I only shoot in “M”
I was using bad terminology, it ranges from f/5.6 - f/60 my 70-200 f/2.8 works at 2.8 but my 300mm f/2.8 doesn’t go down to 2.8, I’ve tried them both on different body's to no avail.
