I took a walk around yesterday shooting with the 24-105. I went out again today with the 24-70 and took many of the same shots. It was quite something to compare them directly...this is a quick summary of my observations:
- At 24mm, the 24-70 BLOWS PAST the 24-105 in the corners. The difference is more dramatic than I realized...
- Distortion: 24-70 wins hands down.
- at 50mm, the 24-105 is "punchier" - with some extra sharpness - the difference is more noticeable wide open and/or with a close subject.
- Macro: Given the time of year, I found the 24-70's "macro" mode to be quite useful for the flowers and roses I came across. No substitute for the 100 Macro, which is nothing short of superb, but it gets me closer than any of the other "regular" lenses. Not a strong point of the 24-105, I must say. That said, it can be a bit of a hassle to switch back and forth between "macro" and normal focal lengths...it requires two hands..
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Conclusion is relatively unchanged. Both lenses have great strengths and also glaring weaknesses. I was lukewarm on the 24-70 but after today, I think I convinced myself to hang onto it.
- I would prefer the 24-70 for the following: Landscape, architectural, macro (casual), inanimate objects
- I would prefer the 24-105 for the following: Events and people photography
They both have their place in my collection.