So far, I've still only played around with test shots on the D800. But I am not seeing any issues with higher ISO shots. I still have my D3, so I could do actual comparison shots between the two. Here is a test shot at 3200 ISO of the cat cropped significantly, down to about 7MP and then re-sized for the web here. I've used a 25 for color noise suppression level on LR from the raw file. I even boosted the shadow exposure to get more detail on the black fur. To me, I am very comfortable shooting to at least 3200 for most of what I shoot if this shot (and the others I've taken so far) are any indication.
Tonight, I will be taking it to a gathering which should give me some real-world event type samples.
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#1. "RE: Getting Started With D800" | In response to Reply # 0JHzlwd Nikonian since 03rd Oct 2007Sun 24-Jun-12 08:09 PM
Thanks for sharing that photo and some experiences. All black subjects are notoriously difficult and it takes guts to post one. Of all the crows I have ever photographed maybe 10% look just right.
I have recently been bragging in this forum (and doing it again here) how I shot a very big wedding using the D800 under rather difficult rules (no flash allowed and the photographer to remain essentially "invisible"). I pulled it off thanks in large part to the D800 having so little noise at high ISO and the 70 - 300 mm VR which let me work at comfortable and unobtrusive distances. The client is delighted and wonders how I did it. Many of my shots were ISO 6400 and clean enough to make very large prints. A tiny amount of noise removal let's me go to poster size at this speed. Dynamic range is excellent and the matrix metering nailed every shot. I had a backup body on this assignment (D7000) but never needed it.
I am very enthusiastic about this camera and have experienced none of the glitches being reported by some owners. It is, in fact, the first flawless camera I have owned and I have quite a few. I would include the D7000 in that category except beginning a few months ago it stopped giving my the "shoot beep cue" and nothing I do will restore it although this is a very minor flaw.
The D800 has made me work harder to be a better photographer simply because it is capable of so much. It really does challenge medium format film which, until now, I was convinced digi could not approach in my life-time.