Quote: (Originally Posted by
grunzster)
Where are you getting this info from? I highly doubt this is true.
A full size sensor potentially = sharper image, less noise, etc. etc., but 10MP = 10MP = 10MP. If it's the same file format file, same type of image, exposure, colors, etc. and the same resolution, it should be relatively the same size.
you are absolutely correct, Sensor size contributes to may things, especially noise. The more densely packed the megapixel race pushes sensors, the more noise manufacturers must deal with the issue. Most of your 10mp non-DSLR no have 400 ISO on up that are somewhat useable to downright mushy because of noise reduction. While DSLR maybe have 10mp, the chip is physically larger, thus the density is lower. DSLR have 3 chip sizes now, all of which are much larger than point and shoot type sensors.
It is this increase in "quality" that allows the camera to produce a larger file (more detail). For example there are three settings on the Canon 40D that record the image at 10.1 mega pixels. they are Large/Fine, Large/Normal (both JPEG), and RAW. All three settings have different file sizes. They are 3.5MB, 1.8MB and 12.4MB's, respectively. This data comes directly from the instruction manual.
I apologize if I wasn't clear in what I was saying before. I hope I did a better job this time.
Tom