We worked with a 20D for a couple of months, taking it on real-by-gosh working assignments for a maritime publisher. The mariner's day can be as active in the dead of night as it is at the height of day, as orders arrive. Everything's in motion all the time on the water, making slow shutters a problem. We came to the conclusion that at its 800 setting, the 20D gave its most favorable performance in the speed/quality balancing act.
We're guessing the public will find the 20D the most appealing of the three low-lighters, though there's plenty to be said for the two others. Each has a strength the others don't—Ultrasonic Wave for the Olympus, AntiShake for the Konica Minolta, fastest gun in the west for the Canon. But also, Canon did its homework on the details. The camera makes a decisive shutter sound, quite serious in tone, and it's a pleasure to handle in all regards. It's already been proven a winner in sales, but it's one thing more—another step forward for photography's raiders of the lost dark.