hi, I am keen to get the 16-35F4L zoom as a replacement for my 17-40. I have tested two copies from the store and this is what I get.
copy One, distant image of building slight softness at all apertures on left 20% compared to the right side....
Copy Two, distant image of building very definite softness on right side , sharp objects almost have a double image at all apertures , right 20% of image.
I have done numerous tests etc, copy one seems almost fine, especially compared to copy Two. I am reluctant to take it and then take it to service center and then being told that it is within specs. I have already paid for the lens but don't want to take it out of the shop until I am satisfied.
So my answer is how are owners of this lens finding them? Any other problems. I am talking about critical professional use...
copy One, distant image of building slight softness at all apertures on left 20% compared to the right side....
Copy Two, distant image of building very definite softness on right side , sharp objects almost have a double image at all apertures , right 20% of image.
I have done numerous tests etc, copy one seems almost fine, especially compared to copy Two. I am reluctant to take it and then take it to service center and then being told that it is within specs. I have already paid for the lens but don't want to take it out of the shop until I am satisfied.
So my answer is how are owners of this lens finding them? Any other problems. I am talking about critical professional use...