D800 and 16-35mm lens, is this a good copy

I will try having problem uploading to DPR.

JefPix, it is not grainy it is very sharp image iso at 50. It is long exposure you'll see grainy effect from the grass and moving water, but not on the ROCK, shooting against extreme sun you'll always see grainy shadow effect. Without using ND filter those grainy became pitch BLACK.

--
http://www.flickr.com/photos/respilot