SuperflyTNT wrote:
I have that lens and I like the MF/AF clutch. If the ring is pushed forward it should focus. Now when you say it won’t focus do you mean it doesn’t do anything or it hunts and can’t find focus. If it’s hunting you might want to check the focus limit switch.
It does nothing. One of the focus points flashes red. I also have a Nikor 85 prime and it autofocuses with no problems on the d5100.