SashDias

This article compares the Nikon D800 against the D3S at a variety of ISO settings.

I've used the 400mm f/2.8 VR extensively with the TC-20EIII teleconverter, and can swear by the combination. I've got a review on my web site with sample...

I did a test of the D800 against the D3S at a range of ISO's, and found that if you're willing to do a little post processing (including downsampling), the D800 matches the D3S at up to ISO 12,800....