I also have been wondering how to post pictures to this forum.
Can anyone explain Dropbox etc: Is it secure?
Anyway - Although the new 24-105 f4L has been readily available for over a week now - I got mine over 2 weeks ago - there seems to be a lack of members pictures posted. My excuse is I have not been anywhere interesting and cannot compete with the usual image quality posted on this forum.
Is this lack of posted pictures indicative that the lens is somewhat disappointing? I hope not!
Whereas the 100-400L MkII has page after page of excellent pictures posted in its thread.
I really must try the 24-105L MkII seriously soon.
I don't think a lens sample pictures thread has been started yet.
It seems most threads are comparing it to other lenses.
From my point of view, no, the lens is not disappointing. I like my copy and anticipate it spending a lot of time on my camera.