Olympus 12-40 easily beats the Canon 17-55 at f/2.8 (but not when stopped down).

Started Nov 3, 2013 | Discussions thread
Beach Bum Senior Member • Posts: 1,055
Re: DxO Analysis - the Panasonic 12-35 beats it also

technic wrote:

Beach Bum wrote:

It's the same story of MFT vs the big boys we've seen repeatedly. The smaller lenses on smaller sensors can in fact out-resolve the monster lenses on larger sensors.

Nothing new here.

True sometimes, depending on how you compare them. But when the bigger sensors have more megapixels they have the resolution advantage, especially for center resolution. There is no way a m43 camera is going to beat a Nikon D800e with a good lens, and that D800 still has lower pixel density that many current m43 cameras. And that higher pixel density of m43 comes at a cost (compared to Nikon/Sony, less so compared to Canon at the moment due to their dated sensors).

The bigger sensors have a resolution advantage NOW, because the MFR's have chosen to roll out their products in this fashion. We have cell phones that have more megapixels than the D800 now. Even though the D800 would clearly outresolve any cell phone, my point is that the pixel count is an arbitrary number chosen by the MFR.

They could pack 50 or 75MP easily onto an MFT sensor if they wanted to, and resolve a great deal more detail, especially with lenses like the Olympus 75mm, which clearly outresolves the best current MFT sensors.  But pixel counts that high are not really practical, because they won't be anywhere near as sharp as they are now at the pixel level, the files would be huge and difficult to deal with, and motion blur, etc., would become much more obvious.

Aside from that, there's nothing that says MFT manufacturers couldn't design massive $3000 F/0.6 lenses for their systems to compete with the honking lenses on FF. It's just that this wouldn't differentiate them from CaNikon. The whole mission statement of MFT is for small size and weight, while still maintaining image quality that will please 99% of the people.

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