Earlier in the week I had posted a bit of a rant about my EF28-135mm USM IS lens and the fact that it was soft focusing
http://www.photography-on-the.net/forum/showthread.php?t=221197
I'm curious about low light focusing with this lens. Has any one seen this lens, or rather any other lens flash the focus confirmation lights even though it is still out of focus. I was trying the lens out in my appartment with the lights dim, and the distance scale on the focus ring was reading 50 feet for the object it focused on. My appartment isn't small, but I can tell you there are no objects 50 feet away.
Note that this was happening while the lens was a 28mm. When the lens was zoomed in, the focus was much better. This leads me to using a trick I used to use with an older telephoto I had where you zoom in focus and then zoom out (hoping that the lens has consitant focus across all the focal length range). Alas I can't do this with my camera as it doesn't have one shot focus. :S Time to reinstall the hacked firmware I guess. I had uninstalled in when I found the soft focus issue, cause I wanted to eliminate it as a source to the problem.
