"Fanta" <fantanospam.it> wrote...Nope. No clues, except that the picture is less jiggly.> I have just got my new 28-135 IS USM, and the manual is not very
> insightful. Can somebody out there help on one or more of these doubts:
> 1) I understand the IS kicks in as I press the shutter button halfway,
> and it takes approx. 1 sec to "warm up"; is there any clue that the IS
> is ready? I don't see any indication;
I think it's another second.> 2) after I release the button, assuming I keep the camera power on, when
> I press it again, is there the 1 sec. delay again? Or is the IS ready
> right away?
Depending on the road and the construction of them, vehicles can be> 3) the manual states IS will not operate effectively from a moving
> vehicle; what is your experience with that? In that situation, does IS
> help at least partially? does it harm?
very shaky to not at all. However, most of the movements contributed
by the vehicle are too drastic to be compensated by the IS. It just
won't be able to do it, but will waste your time, patience, and the
battery. Don't shoot from moving vehicles with IS.
28-135 has the first generation of IS. Newer lenses have a special> 4) if I follow with the viewfinder a moving subject, to get a still
> subject on a moving background, may I keep IS on? Would it do any good
> or harm?
switch to pan mode, which improves the behaviour of the IS when the
lens is panned. It is better not to use IS when shooting moving
More information could be found on the Web, I think. Try photo.net