Canon's 50mp DSLR. Higher res than D810, but more moire andnoise

On 8/05/2015 5:49 p.m., android wrote:
In article ,
RichA wrote:

IMO, the resolution is noticeable but not huge because the linear resolution
increase isn't that great. It sounds like a lot when you say, "50mp compared
to 36" but that's not how resolution works. If you want to double
resolution, you need to quadruple pixel count. It does show more moire than
the D810, I don't know why. Noise is perhaps 1/3 to 1/2 stop worse than the
Nikon. Because file sizes are dependent on area, unlike resolution, file
sizes are considerably larger.

I don't think that the moire is "worse", just different because of
sampling frequency on the patterns on the test target.
Bitching about whether an AA filter is still needed or not (even at only
36mp) should be made after adding the D800 to the comparison tool. Moire
appears in the D800 image in exactly the same place as with the D800E
and D810, it's certainly not eliminated by the AA filter, only reduced.
I'd expect to see the same difference between the two 5DS models when
DPReview add the 5Ds to the compare tool.


http://www.dpreview.com/reviews/imag...&attr13_0=cano
n_eos5dsr&attr13_1=nikon_d810&attr13_2=pentax_645z &attr13_3=phaseone_iq180&att
r15_0=raw&attr15_1=raw&attr15_2=raw&attr15_3=raw&a ttr16_0=200&attr16_1=200&att
r16_2=200&attr16_3=35&normalization=full&widget=1& x=-0.5172853599968508&y=0.26
069086651053863

If you check the noise in DxO you'll se that high ISO noise is lover in
1Dx than in the D810. I also downloaded the ISO 6400 files for the 5Dsr
and 1Dx from Imaging Resource and found that noise vise, at the same
imagesize they there not to tell apart...

Click on the measurements tab:

http://tinyurl.com/lng7t2c

http://www.dxomark.com/Cameras/Compa...810-versus-Nik
on-D4-versus-Canon-EOS-1Dx___963_767_753

Really?
That link to DXO shows very little difference at all in high ISO noise
between any of those 3 cameras. The "score" - Sports (Low Light ISO)
are 2786, 2853, and 2956. If you were able to set your camera to ISO
2786 and 2956 and compare the result (image noise) do you think you'd be
able to pick the difference? Even if you could, then what practical
difference would it make anyway? File size might make a practical
difference, so might resolution.