I am going thru pretty big changes.
I am selling my 17-40 and 24-70 2.8L and planing to get a 17 TS-E and here is my problem.
The second would be or a 24L II or a 16-35L II.
So far I have used the 17-40 90% of the time and only 10% of the time the 24-70.
I would use mostly for landscapes and architecture, but since I have the 17 TS-E i am leaning toward the 24L.
I did not really try to shoot stars and the milky way, but I think the 2 stops of extra life would be a huge difference. I did not try this but for example I take two shots, one where I take like 10 minutes exposure for the foreground and then I take one at f/1.4 and expose the stars for 20 seconds. And like this I would avoid the trails.
Anyway, I am really interested which one has faster auto focus, and what are the advantages of one or the other besides that one is zoom and one is 2 stops faster?
Any other options I can have?