Quote Originally Posted by Mescalamba View Post
Really nice pics Elisha. My guess is that A700 has simply perfect color reproduction, and quite good dynamic range. And you have skilled hands. I wonder, how nightshot from A700 looks like..
I have a few ISO 1600 portraits and thats about it. Haven't really ventured into night photography yet and I doubt anything short of a D700 or a D3 would look good beyond ISO 3200.

The a700 has the same sensor as the Nikon D300 and with firmware v4, it is almost on par with ISO performance. Probably 95% of the sensor performance of the D300. Nikon seems to have the upper hand on perfecting their firmware and Sony took over a year to bring out a near perfect firmware for the a700. Sony's filter implementation differs to Nikon as well. It's more noticeable when comparing the a900 and D3X.
The D90 has an improved sensor and is better at low light than the D300.
And I'm pretty sure the new D300s may get the newer improved 12MP sensor of the D90 or maybe a better one as well.