>>4331651High megapixel cameras also look like crop sensors even without the crop. The tiny pixels do have more noise even if the whole sensor has the same SNR as a lower resolution camera. Because bayer guesses color based on individual pixels, colors get noticeably worse as the ISO raises at a faster rate than they do on low resolution cameras.
>>4331709When you downscale a high res image, you just get a low res image, the only things that won't downsample out are moire and the noise character (high frequency static+fucked colors)
I have never seen people say a 24mp camera has less 3d pop or a 45mp camera has more
Actually i've seen the opposite with people strongly preferring lower density cameras, the d750, 5diii, gfx50, cfv-50c, for a film like/3d pop look. Probably because since the color is made up, having less noise on a per pixel basis better preserves the tonal transitions.