I didn't get much chance to shoot with my D800 today as I was sat in the office for most of the day. Here are a couple of the images I did get on my brief trip to Dunham Massey after work.
Time to walk up - ISO 500 - Nikon D800 - 1/800s F/7.1
I have taken a lot of handheld shots with the D800 and not had too much problem. However I have been stick to around 1/1.5 x focal length as a rule.
I wanted to do another test comparing the high ISO performance of the D800 with the D200 as I have been asked by a lot of D200 users how they compare in real life. So I took a few photos of a bottle of Bud - is that real life enough :)
Both the shots below are taken using a Sigma 50mm F/1.4 lens (this lens is really great for only £360!) at F/5 on a tripod. Obviously the D200 was a bit further away to take into account the 1.5x DX factor. The D200 crop is at full pixel resolution (big enough to print at A3). I downsized the D800 to the exact size of the D200. Decide for yourself the improvement below. I have also included a D800 at full resolution at the bottom.
D200 full crop @ ISO 1600
D800 downsized to D200 @ ISO 1600
D800 full crop @ ISO 1600