I am most worried about sharpness and color. It took awhile for me to set the Canon up and memorize the settings for the tanks and I would still get grainy pictures on occasion (I think Vaughn solved that mystery during our AU visit) but now I have to start all over. I found a great site to compare apples to apples (or close, no actual "i" anything ). Part of the problem with using it is that you can select DSLR in the photo comparisons ... Hopefully this will initialize with a Leica, Yours, Mine and the Canon G12. Move the blinking box to see the images from all. you can also change the ISO settings (individually or for all from the primary) as well as switching to RAW for cameras that support it. Pretty cool little tool and I bookmarked it for the next time someone mentions cameras.