Sigma lens when i am switch cam from canon to Nikon and bought the 18-50 HSM is much better QC.
And after I got the bad experience in AF issue, so no more sigma lenses line-up in future.
That's what I can tell.
Any brand or lenses should be the better lens.
Please noted before paying and check properly the AF with close up focus & used wide open for shoot and no problem, just pay your bill.
Erm... That's a rumor published by the good folks at Nikon Rumors.
That's not a press release by Nikon. Even the rumor says Nikon will be announcing a repair advisory. That means Nikon hasn't officially acknowledged that yet.