If you could Have only One

[Madison]

24-105 (On a full frame).


17-55 (On a crop).

[Keith B]

24-70 2.8

[Colin]

But, to answer your question, for a 1.6x crop body it would be the EF-S 17-55mm f/2.8 IS. On a FF body it would be the EF 24-70mm f/2.8L.

I think I'd have to agree with your selections, neuro.
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I think so too... the 24-105 beats out the 24-70 in terms of IS and reach, and I think it has better control of CA outside of the focal plane, and I really like the 24-105, and don't want to give it up if I can keep it, but... the 24-70, even if it is a clunky bastard with less zoom range, just makes me happy in ways the 24-105 doesn't (as much). To be honest, I wouldn't bitch about having either.

[cxr]

24-105 f4 IS USM

[Brendan7]

Besides, aren't you always telling us to "get closer"? [img]/emoticons/emotion-4.gif[/img]With a 20' MFD, you might need a bigger back yard!

Yes I am, because getting closer doesn't cost $12,000!

[ddt0725]

Man, tough question! Debating between my Canon 100mm f/2.8 L IS macro and 17-55mm f/2.8 IS. I guess if I had to choose I'd go with the 17-55mm!

Denise

[bob williams]

Since most of what I do is outside---It's the 100-400L for me-----otherwise the 24-105, regardless of crop or not.

[neuroanatomist]

Besides, aren't you always telling us to "get closer"? [img]/emoticons/emotion-4.gif[/img]With a 20' MFD, you might need a bigger back yard!

Yes I am, because getting closer doesn't cost $12,000!

Well, for birds that may be true. But for shooting carnivorous animals in the wilds of Africa, 'getting closer' may well result in far more than $12K in medical bills.... []

[Brendan7]

Well, for birds that may be true. But for shooting carnivorous animals in the wilds of Africa, 'getting closer' may well result in far more than $12K in medical bills.... [img]/emoticons/emotion-5.gif[/img]

Meh. I could buy a closetfull of Ak47s for maybe $3k. Just Kidding.

[2slo]

I'm curious to your compelling reasons for preferring a 17-55 over the24-70mm on a crop body?