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by mastazi
3550 days ago
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All you say is correct and I agree that lens speed is not the only element to consider. As you noted, it is a trade-off between different factors. My main gripe with the 24-105L vs. the 24-70L (i.e. the lens that came second in that chart) is not just speed in itself, but the fact that the former has a zoom extension of more than 4X (my previous comment should have been more exhaustive). As an old-style guy, I usually am uneasy with zoom ratios over 3X because I believe they are detrimental to quality. So when I have to trade between zoom extension vs. something else, I often go for the latter. The MTF charts for the 24-105 f/4 L [1] and the 24-70 f/2.8 L II [2] seem to confirm my gut feeling... [1] https://www.usa.canon.com/internet/portal/us/home/products/d... (click on "Read more..." to see the MTF graph) [2] https://www.usa.canon.com/internet/portal/us/home/products/d... (click on "Read more..." to see the MTF graph) |
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