hands-on review of the D7100

Started Mar 15, 2013 | Discussions thread
(unknown member) Contributing Member • Posts: 566
Re: D7100 seems significantly better than D7000

inasir1971 wrote:

I had a look at the RAW files from Focus Numerique.

Just downloaded the images for ISO 800, 1600, 3200 for the D7000 and the D7100. The EXIF data was changed in the model field from "NIKON D7100" to "NIKON D5200" which allows Lightroom 4.4 RC to process the images. We can't be sure that the D5200 profile used by Lightroom is correct but it works temporarily and any proper support can only be better.

White balance was adjusted, sharpening 45, 0.7, 70, 20. D7100 files also had luminescence NR 15 applied. The D7100 files were downsized to the same size as the D7000 files (4928 on the long edge).

The D7100 files seem significantly better at these higher ISO's showing less noise at equivalent size and more detail - possibly around a stop or so. Interestingly the D7000 files show more moire/aliasing than the D7100 files. Any banding that has been reported is not something that I can see - if it is there it is very hard to detect in any normal use, or requires such a push that the image would degrade so much any way.

The images need to be looked at at the same size for comparison - I have downsized the D7100 to D7000 size. Please note that the D7100 files will report D5200 as model:

D7100 ISO800

D7100 ISO1600

D7100 ISO3200

D7000 ISO800

D7000 ISO1600

D7000 ISO3200

To me, the D7100 looks around a stop better than the D7000 - that is the D7100 ISO1600 looks as good as the D7000 ISO800, etc.

While the FN images leave a lot to be desired, the differences between the two are too significant to be bad testing - I don't think they are close, the D7100 is a significant improvement.

(Luminescence NR always reduces detail - there is no free lunch - so applying that to the D7000 files would reduce detail further)

Let me first say that I have no interest in either of the cameras and that this post is more about testing and comparison methods than anything else. It is amusing to me how some "camera review" sites can be so sloppy in their testing approach and still be able to pass it all off as valid data.

I only looked at the ISO 800 shots from both cams but I suspect this is the same in all of them. Look at the bottom left of the pictures - the light reflections in the lens of the vintage camera (and a few other spots) indicate that the shots were taken under different lighting conditions; angles to be more precise... looks like either the test boards or the lights were rotated 90 degrees. This alone might have caused slight underexposure in one and that means more noise... I can't speak for anyone else but I know I would not base my purchase decision on these samples, that's for sure.

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