Excerpt: I wore the shutter out on my D300 and so finally upgraded. Wow! The viewfinder alone is worth it; I can see so much more clearly through it. It's a pound heavier, but is so solid I don't mind. I will have more time this winter to explore its many advanced functions.
Excerpt: This camera is the "cats meow", except for the memory card slots. As everybody knows, it should have come with dual slots of the same memory type. This would have eliminated alot of problems with card incompatiblity with the XQD slot.
Pros: Fast shutter speed, superior image quality, Ultra fast focus
Summary: Very well built, with one exception : I had problems with CF cards on D4s, to find out that one of the pins was bent !!! after a wk of use !! I consider this a poor design, with too much room around the CF drive or bay. This would be a problem regardless of make of your CF card.
Excerpt: Top notch high speed sports machine. Have used it indoors ( water polo) with a 400mm 2.8 lens - ISO range is great for low light. Also used it for rugby and the 1/8,000 second shutter speed + 11 fps is an awesome combination. Last weekend, for the first time I did have the camera lock up on me.
Summary: Good professional grade SLR, rugged all weather DSLR. Good low light performance and the focus is extremely fast, 11 fps a bonus. Feature rich and well balanced. Dual card slots with differencr cards is a mistake and I would liked to have seen increased resolution over the D4 but these are minor...
Pros: Durable, Fast Focus, Great Features, Great Picture Quality, Low light performance