jak86094 wrote:
If you haven’t already, try mounting a different lens and see if the problem persists. I just sent a lightly used Tamron lens in for warranty repair which was behaving somewhat the same. If I removed then remounted the lens, it would work for a short time ( less than a minute) than stop focusing. But it was only this one lens. Manufacturer said it was probably the lens’s autofocus motor going bad. jak
I tried a different lens and it worked perfectly. Also I cleaned the lens I was having the problem with and it seems to have resolved the problem. I appreciate your reply, thanks!