Does anybody know, if the speed of an USM powered lens, used on an EosM/M3 shows an delayed reaction when focussing?
I do not mean the AF speed od the camera. A member of our local photoclub has this problem, when he uses one of his L lenses with the adapter on the Eos-M. The original 55-200mm lens works much faster. The camera focusses and about a second later, you can hear and see the reaction of the lens. This phenomenon does not appear with his 55-200mm.
I just ask, because I am a little bit willed to buy the M3, if it has an good IQ.