It seems you have make a distinction between OIS on a lens, and IBIS within the camera - because there is a difference.
OIS: My understanding and experience with DSLRs and their lenses was that cheaper lenses and some of the earlier L series lenses did not behave well if OIS was engaged on a tripod. However, later lenses were far more effective in doing do. The 55-250, being a kit lens, might well not be effective in sensing the tripod and thus create vibration.
However IBIS is a different thing...
First, only the higher models of MILCs have IBIS, like the higher end DSLR lenses. So, this is only applicable to them. That, combined with the reviews I have seen, and my own experience, suggest there is reasonable evidence that IBIS is smart enough to realize that a tripod exists and respond to that.
However, in practice, I would suggest that if in doubt, one can always turn IBIS off.
Actually, given the interest, this would be a good thing to refer to Canon Tech Support as the providers of final info...
cheers, TREVOR
The mark of good photographer is less what they hold in their hand, it's more what they hold in their head;
"All the variety, all the charm, all the beauty of life is made up of light and shadow", Leo Tolstoy;
"Skill in photography is acquired by practice and not by purchase" Percy W. Harris
