Mitch.Conner said:
candc said:
using a zoom mostly at both ends is pretty common. its still one lens instead of two.
Is it? I feel weird looking through the metadata for my photos and realizing that, of shots taken with that lens, almost none are at focal lengths in between the ends stops of it.
Do you shoot events?
If so, the IS and ease of switching focal lengths makes the 70-200mm the clear choice. The image quality isn't your concern, it's your clients', and apparently they've been more than pleased thus far.
Or do you shoot portraits or for personal work? In that case, just get what you want. I'm a poor and very inexperienced photographer so the 70-200mm f2.8 II IS still wows me despite its obvious limits, but when I switch to an 85mm f1.4 (I haven't tried the f1.2) I get nicer background separation and similar sharpness, and I only own a 200mm f2 AI Nikkor in "user" condition, but it is magic, with a much more captivating look on my 5D III than the 70-200mm f2.8 II IS, which is relatively clinical. The 200mm f2 IS Canon is my dream lens.
You've answered your own question. You've outgrown the gear you have. So move on. Those who claim you should do otherwise still haven't outgrown it (as I haven't yet).
That said, "zoom with your feet" isn't just a dumb adage. Obviously I have a given focal length in mind for each photo I take, though I'll cheat with a zoom a few mm here or there to get the framing right. But I, too, find 50mm, 135mm, and 200mm to be the most useful fields of view, and will often default to 70mm anyway.