It has already been said so much about the D750 - here an entirely subjective opinion: GOOD: - ISO noise was yesterday. This thing takes pictures in total darkness (Christmas, a few candles ...) and just look good = clean. Until ISO 12800 is very easy to use (to print on A4 or on the monitor). Clear dissolving at such high ISO values the individual eyebrow hairs can no longer be 100% on - but colorful noise you maybe not). Have the direct comparison to the D810 and is at least one to two stops worse. A small post-processing with Lightroom and all is well. - AF: see all other reports on the Internet: The really fits very well and quickly. - The OK button are 100% view of the photos for quick sharpness control - with motion blur more the issue than the AF itself - Folding screen: I feel though always a guy with ner smartphone camera, if I do not look through the viewfinder (;-) but it is significantly more creative and precise with different shooting locations - I do not lie down in the mush, although children are "in puddle "Photos something else when they are added times even puddles perspective ... - 6.5 frames / sec are fast enough for frolicking children
Not so great: - The RAW files are almost as large as that of the D800 / 810: 30-33 MB per image from the D750 and 38-45 MB of the D810, the D800er were about 35 MB (all 14 bit, lossless compressed) - Behind the display has no protective plastic (you can buy only glass panes) - The button on the back to move the AF point and he OK button in the middle are significantly smaller than in the D800 - because I hit more often next (with gloves it's really a pain)
Absolute buy recommendation. Only someone who is a total Auflösungsfetischist, needs a D810 - the supplies to ISO 3200 visibly better images (where this is a whining at a high level). At high ISO, the image rotates completely. The D4s can not be selected in this comparison.