Jeff: I am currently shooting with a 1Ds Mk II and find its performance amazing at any ISO speed. I've shot numerous times at ISO 1600 and results were great. Since I don't like to use flash for night photography I have chosen to invest on Canon's 24mm f/1.4 prime lens and combine it with a high ISO speed to avoid the flash. I have taken shots at several locations including some that are not particularly well lit at night such as Disneyland. The photos are always amazing. There is just very minor noise that I find easily acceptable and this can be improved by running the image through some kind of noise removal tool or filter. The camera has a setting that allows the ISO range to be extended so that it can go up to ISO 3200. I haven't tried this yet but will soon just to see how it does. Based on what I have seen so far I can only imagine that images will look very good as well. The EOS 1Ds Mk II is definitely in a class by itself. Best regards, Joseph Chamberlain ---------------------------------------------------------------------------- On 6/28/06 7:28 AM, "West, Jeff K" <JeffWest@xxxxxxxxxx> wrote: > > I've been using the 10D at ISO 800 for a couple years now and not had any > problems with noise (grain). Anyone have any experience with the 5D or 1Ds > Mark II above ISO 800? (any comparison between the 10D and the others at > any ISO?)