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

Started Apr 4, 2013 | Discussions thread
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Hans Kruse OP Veteran Member • Posts: 3,364
Re: Interesting article on DxO about 5D III and D800 resolving power
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schmegg wrote:

Hans Kruse wrote:

The diffence is quite remarkable and with a full frame 645 sensor the sensor area is around 2.6 times larger so it is to be expected that the resolution is much higher.

The size of a sensor is not the governing attribute that determines its resolving power.

If you photograph the same scene (=same FOV) which is how everybody does this kind of comparisons, then yes, it is!

Just like APS-C sensors resolve less detail than a full frame sensor with the same number of pixels.

Given the exact same detail presented to the sensor plane (which is the only really valid way to determine which sensor can resolve more), an 18MP Canon crop will resolve more detail than a 22MP Canon FF sensor.

Not if you photograph the same scene which is what DxO does and everybody else.

I think you are considering situations where the detail presented to the sensor plane is different to begin with - something that isdue to the difference in sensor size in many situations.

Every review site I know of compares resolution via shooting the same scene (same FOV). You have a different way, but this is unusual and therefore creates more confusion

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Hans Kruse
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