Here are some samples of how well (or not) some of the special modes on the Fuji X10 work. I hope other X10 owners will chime in so that people interested in the X10 can understand and see whether or not the plethora of special modes in the X10 have any real practical use. I haven't read the manual yet, so bear with me if I write something incorrect about the X10! The X10 has two special modes that supposedly lowers noise in high ISO conditions -- (1) EXR SN, and (2) Pro Low Light. EXR SN uses the pixel binding technology to create a size M (6 mp) photo. There's an EXR option on the dial mode, but it's my understanding the EXR can also be activated in PASM if the user sets the photo size to M. When using the EXR mode with the dial mode, you have no control over ISO. Not sure how the control is using PASM. Pro Low Light works like Sony's multi-shot noise reduction. The X10 takes 4 shots and creates a composite of the four shots by making a size M (6 mp) photo. User has no control over ISO. I believe this mode is JPG only. So here's my unscientific tests photos. All photos are JPG and straight out of camera. They were all handheld shots. But I was sitting down, and my arms/hands were nicely braced. I suppose I should have used a tripod to really take camera shake out of play especially when I was shooting at 112mm EFL. Photo 1: Size L (12 mp), aperture priority, ISO1600, 28.4mm, 1/40, F2.8, reduced to 1024 pixels, DR100% Photo 2: 100% crop of the Photo 1 Photo 3: 100% crop of Size M (6 mp), aperture priority, ISO1600, 28.4mm, 1/40, F2.8, DR100% Photo 4: 100% crop of Size M (6 mp) in EXR SN, ISO1600, 28.4mm, 1/30, F2.8 Photo 5: 100% crop of Size M (6 mp) in Pro Low Light, ISO2500, 28.4mm, 1/60, F2.8 From these test shots, it looks like the Pro Low Light mode is most effective as the last 100% crop photo shows less noise graininess than the others, even though the ISO is higher than all other photos. The higher shutter speed also helped to provide a sharper photo. The grain you see on the wall in the last photo is not entirely noise grain, it's actually mostly the wall texture! I'm impressed.