I ran a post over a month ago asking if anyone had experience with a Sigma service centerregarding AF issues with their lenses.


Well for those of you who are interested, I took a trip down to the Ronkonkoma center to address my front focusing (+20 MA) 50mm lens.


I brought my 7D along with the lens so they could calibrate it to the body.While there, the technician informed methattherewas indeed a firmware update for the lens. I had to wait a little over an hour for the update and calibration. I was not happy with their 1st attempt, so I hung around a little longer while they made further adjustments.


Final results: the lens is spot on now! It seems more consistent and reliable at any shooting distance. I am very happy with the results. This experience puts my faith back in Sigma again.


Regards,


John