Bay has always expressed his dislike for the added dimension, even once claiming that his films would never be in the format. He changed his mind at the studio's request, using the same cams used to shoot James Cameron's Avatar
This doesn't shock me one bit. Bay is known for his wild, fast paced shooting style. Not exactly conducive to the heavy 3-D cameras he'd be forced to utilize. One of my biggest complaints with the Transformers flicks so far has been that when the robots are brawling, the effect gets a little sloppy and it becomes hard to tell what is going on. We've seen in Clash of the Titans