Originally posted by gerardbaron Yesderday I try to fine tune the AF the Tamron 70-200
-10 and the focus isn't perfect, I am off by 2 line, I was using the viewfinder.
As others have indicated, it's not that uncommon for Tamron lenses (not just the 70-200) to be somewhat out of alignment straight from the factory. I've had two brand new 70-200 and one new 28-75 that needed re-alignment from my local Tamron service centre, and another 28-75 in Sony A-mount that needed mount replacement due to a tilting issue (causing the focal plane to be non-parallel to the sensor). I didn't keep the 70-200 lenses as I decided to go with the DA*60-250 (I shoot APS-C with Pentax), but both 28-75 lenses were quickly fixed by the service centre. Following service, they were perfect