I won't be adding to this thread for a little while.
My wife was shooting a wedding on Saturday and set camera with flash/24-70 down somewhere and turned to arrange a group and it got unbalanced and fell. Broke the foot on the flash and bent the lens's mount, but didn't seem to bother the camera. Looks fixable to me, so we'll pack it off to Precision and see what they can do...
---------- Post added 11-02-15 at 06:20 AM ----------
Originally posted by acoufap The images are not shot with the same angle of view and the ones taken with the 24-70 are significant brighter.
Therefore I'm not sure if we can compare these images concerning the "blob" - at least it's very hard to judge IMHO.
You're probably right. Here are the 16-50 images with exposure brightened to try to match the 24-70 photos.
(f2.8)
(f8)
Neither one of these lenses is great with shooting the sun. I just found that with the 24-70, it was less likely to disturb contrast throughout the image versus the 16-50 where half the frame can have decreased contrast due to flare.