Serious doubts on the D7100 at high ISO

Started Mar 25, 2013 | Discussions thread
mosswings
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Re: 24MP is really straining the APS sensor
In reply to RichRMA, Mar 27, 2013

RichRMA wrote:

I saw this first with the Sony NEX-7 images, they had noise in certain scenes at 200 ISO.

You compare the D7100 to Pentax K5IIs's (another camera with no AA filter) (16MP) RAW images in the Dpreview studio shot and it is about 1 stop noisier.  The Pentax shot at 3200 ISO looks like the Nikon shot at 1600 ISO, it even has less chroma noise.  The price you pay for all those pixels.  IMO, they were better off at 16 than 24 which appears to be pushing the APS size sensor.

Did you view at comparable image sizes?  The D7100 is slightly worse than the D7000 on a per-pixel basis; not on a full image basis.  That is always the case with increased resolution. The D7100 is all about print performance, not per-pixel performance.  That it's been able to exceed the D7000's print performance with a sensor technology with bulk characteristics that are not quite as good as the Sony EXMOR used in the D7000, is an accomplishment in itself.

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