I noticed that none of the fastest lenses (L or otherwise), up to almost 100 mm, don't have IS. Some of the lenses are recently issued, yet Canon didn't put IS on them.


So, why would an IS be needed on such a fast lens? And, if they thought it was so important, why didn't they put it in, say the 85 1.2 II, 24 1.4 II or the TS-E 17? Could it be that, despite the increased cost, it isn't necessary?


Just curious.