I have a D7000, (and a D90). I use the D7000 for theater work (ballet): low light and motion. I need to keep the speed at 1/200 because of the motion. The light is very variable from scene to scene: in luminance and in balance. I have no control over that. I try to keep the ISO as low as possible to avoids noise, but to avoid the LO warning, I need to go as high as ISO = HI 1.0. This yields noise in even moderate cropping. (I know about the Hi-ISO noise reduction.
so the issues are:
(1) any suggestions on technique? (2) any suggestion on post-processing? Use DxO? Use Noise Ninja? Other? (3) if upgrading: since I on am on an amateur's budget: D600?
NOW, i know that this is the Nikonian forum, so I might be sticking my head in the lion's mouth, but: D600 vs. Canon 6D?
On the latter point, I have seen posts about DPR being biased toward Canon. But when I look at what appear to be the DPR hi-ISO test images, the MkIII (so i assume the 6D -- although no test yet on DPR) is more contrasty and slightly sharper than the D600 (more so, for the D7000) at every ISO setting -- independently of the noise. ((On with hi-ISO noise reduction turned off, the noise levels seem aurprisingly similar among the MKIII, the D700 and the D7000 -- the issue is contrast and sharpness. This is true in RAW and JPEG, although the Nikon JPEGs are particularly soft, relative to the MkIII (I thought I would stay away from the DPR commentary, but on this point, DPR says that this is a characteristic of Nikons.) If the issue is sharpness and contrast, does this become a post-processing issue?
(4) I also read that very warm incandescent light makes noise in digital cameras generally. i experience a lot of this with the stage lighting. Does fiddling with the white balance to reduce sensitivity to red help? Or do I misunderstand how the white balance works? I.e., that the red input is already on the sensor, and the white balance only controls the amplification of the red channel?