Originally posted by starbase218 I think I read somewhere else that entering the shortest focal length makes more sense, since you don't want the SR to over-compensate for camera shake. (the longer the focal length, the more the sensor moves to compensate for shake)
Yeah, on a 70-300, I don't think I'd enter 300 unless I was always using the long end. Of course, if you aren't zooming that much, there is nothing wrong with setting it for 300 for this shot, 100 for that one, etc. But you do want to err on the low side in general if you're going to err. (once you are over 100mm or so +/- 10pts isn't a big deal)