Interesting article on DxO about 5D III and D800 resolving power

Started Apr 4, 2013 | Discussions thread
Hans Kruse
Veteran MemberPosts: 3,114
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Re: Don't get your meaning?
In reply to John Sheehy, Apr 6, 2013

John Sheehy wrote:

Mike CH wrote:

Why does a photographer need that information? What can he use it for? What is the practical use of that information? Basically, you are saying that some frame with 2/3 the image of another has more detail. How can I use that?

Lots of people need it, quite frequently.  What good is a nice, pixel-sharp FF image of a bird in the grass if the bird only has 100,000 out of 22 million pixels, if the other 21,900,000 pixels are all grass?  The crop of the bird from the top-notch FF sensor is a sick joke compared to what you could get with a 1/2.3" P&S sensor placed behind the same lens, both in terms of subject resolution, and noise visibility.  APS-c with higher pixel density than FF is just a small step in the right direction.

I don't know of any bird shooter who would make such a picture If you use FF you will use longer focal lengths to compensate for the somewhat lower resolution per area of the sensor on FF compared to smaller formats. But of you can fill the frame on FF you will obviously get the best resolution and result (assuming proper focus, exposure etc. ). But this is an old discussion isn't it?

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Hans Kruse
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