rehess wrote:
It should regain focus in a second or so.
In the days of film, most zoom lenses were designed to be "parafocal"; that is, the same focus setting would work for all focal lengths. However, parafocal puts additional design constraints on the designers, so most lens units dropped that requirement for AF lenses, because an AF lens should be able to regain focus quickly.
Thanks! I needed to read this. I was getting concerned. I am in my 70's and this has been bothering me. To tell the truth I have been holding off on ordering a new camera for this reason. I am not really a photographer. I am great at composing, but the features I am not good with. Hope that makes sense.