Yup.Yup...I agree with Michelle and Zounder. I do wonder about what Zoundersr camera decided was the lighter image. Lets face it although cameras in general simply record what they "see" they also have to make a basis for what is zero ect. for backlighting modes, focusing ect. I wonder if this depends on the camera. Here is how I see it so to speak. According to Nplus as I recal the data for a b/w image should be sharper because less data is required for a b/w image and the camera unfortunately I don't think the camera will in general decide to retain more information of the image because less specific information is required. OK. Let me try this again. If a picture requires lets say for simplicity 30units of information and it is recorded as RGB then roughly for the sake of argument it will translate to 10units per color. What Nplus was saying is that if one takes a B/W picture one will then have instead 15units of info per color ( 15 units for black and 15 units for white ) What Zounder is saying is the camera will still save the info as 30units of RGB data it's simply has converted the data to some shades of color which look to us as b/w. ( EG. 100% Red, and 100% Blue, and 100% green is black and 0%Red, 0%Blue, and 0%Green is White so I guess 50%Blue and Green and Red is Grey) OK here is the rub. Depending on what setting of focus frame or feild. My camera gives me an additional 20% of resolution! One setting interlaces more veritcal scans from the cmos than the other! So I do wonder if Nplus is possible right. Bsteph