Wow, I didn't think anyone else would ask that. I just posted a new topic.
I really think it will make a difference, because as you drop the MP, the ISO jumps from 1600 to 3200 and finally to 6400 at 3mp.
I'm willing to wager that sensitivity DOES increase... how much? I can't say.
I guess I'll have to buy the camera if I'm going to get my answer.
It's a shame because I've waited for this camara for a long time. I never bought the older models because I was holding out for the SD card. Now that it has one.. it would appear it may no longer be the camera for me.
If I buy one, I'll let you guys know.
You won't get any benefit of reducing to 6MP on the F50 and comparing them to the F31. Side by side images will look worse on the F50 even if you downsized a 12mp F50 file to 6mp. I know from experience as I have (had) both cameras. You can't mess with physics and they just packed too many pixels into what could have been a dream camera.