Well, I'm not familiar with the camera enough to comment on that subject.

However, regarding your questions on SFO, where will you be for 1L and 28s? I use an Olympus with 10x zoom. From across the bay, by the airport Westin, I can barely get 3/4 frame 747 on the 28s and full frame for a 757 or 767 on the 1s, and at full zoom the image quality is pretty poor. I prefer to be in the terminal shooting planes that taxi to and from the terminals.