A few days ago I received the Tamron 24-70 f/2.8, a very nice lens! Soon after using it I noticed the photos where not sharp at 24mm at f/2.8, so I decided to try the DotTune method; well this did not work for me. Instead I printed of a focus test chart and practiced taking photos of that. As you will see at 24mm at f/2.8 the focus is terrible, then after a lot of playing around I changed the AFMA to +14 which you can see is a lot better. I was wondering what peoples thoughts are on this, is +14 acceptable or should I send it back and get another copy? Because of this I’m now worried that this copy of the lens is not as sharp as it should be, but then I don’t know how sharp it should be, if that makes sense.