- But I have to make concessions in terms of communication with the lenses.
My Tamron 70-300 VC USD interrupts the communication when changing the focal length (image is black). Only a switch to AF and back to MF bring the image back.
Perhaps a dee big exceptions and therefore bad luck.
- - My Canon 100mm 2.8 also has problems. When focusing, it may, depending on the distance happen that the aperture value increases. Of the possible 2.8 I then partially not able to come under 4.0 .. Beautiful exemption through open aperture is thus not really quite possible. That's my biggest gripe ..
