Noise is created by underexposure. Some cameras hide it better than others, but if you're shooting under the right conditions, you can see noise anywhere.
Sorry, but that is incorrect. In general Noise is created by a multitude of reasons, underexposure not being one of them, but the primary reason noise is created is from the analog to digital conversion. Of course the higher the ISO(Sensitivity to Light) the more noise may be present. New sensors like the one on the 5D MKII does a great job in reducing it, but it is still present.
By underexposing the picture, you are able to "see" noise, but it's not the cause.
BTW, I just shot the 5D MKII at a 3 day wedding extravaganza as a second shooter. On site were a normal 5D and the 5D MKII. So it was great to compare the two.
Overall, I think the MKII is a superb camera when it comes to image quality, especially in low-light conditions. My only big gripe about it is the quality of construction. It was annoying at times while trying to review the histogram by pressing the "play" button and it not respond. Perhaps it was this particular camera, but do you notice any problem with the lag? Also, talk about eating up memory card space. On the first night, we were ill-prepared and only equipped with a handful of CF cards, by the end of the night we were forced to shoot in JPEG. *sigh* Those are some very, very large files in RAW.
Great photos too by the way! =)
Len
PS. I'm not sure if it's up yet, but the main photographer's website is
hk | imaging: Atlanta's premier wedding photographers. There should be some processed photo's up soon.