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Opinions on the RF 28-70/2 vs RF 24-70/2.8 in terms of IQ?

Started Feb 16, 2020 | Discussions thread
gimp_dad Senior Member • Posts: 2,692
Re: Opinions on the RF 28-70/2 vs RF 24-70/2.8 in terms of IQ?
2

travelinbri_74 wrote:

Setting aside the larger aperture of the 28-70/2 - which is clearly the reason to get this lens - I am curious how the two lenses compare in terms of IQ - and particularly sharpness - at competing focal lengths and apertures?

Brian does reasonably repeatable testing. As you can see by playing around with various focal lengths at F2.8 there is no clear winner. However, even at F2.9 they aren't identical. There seem to be more cases where the RF28-70/2L is sharper in the middle and more cases where the RF24-70/2.8LIS is sharper away From the middle but that also depends on which FL being examined.

https://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=1415&Camera=1221&Sample=0&FLI=2&API=0&LensComp=1223&CameraComp=1221&SampleComp=0&FLIComp=2&APIComp=2

Personally, I find them both to be plenty sharp.  The RF28-70/2L comes out a lot less frequently but is excellent when that extra stop is needed to create the right subject separation in a busy environment, while the RF24-70/2.8LIS is the best ever for its class and is useful for everything: landscapes, handheld night shots of the city, portraits, candids, etc.

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