How many photos can a 256MB memory card hold for a 8.3 mega pixel camera?

Think of megapixels as horsepower or whatever - it basically measures resolution and not the number of pictures a memory card can hold. This depends on:

-The size photo chosen in the camera 'Menu' (eg from postcard size to A3)

-The size in kilobytes of the individual photo.

For example, my camera is set to take 4" x 6" photos, and the average size in kb would be less than 2000 , or 2Meg, so in theory this would easily give (256/2) = 128 photos.

(I Gigabyte is 1024 Meg or 1,024 x1,024 kb0. However, because each person's photos and likes and dislikes are different, yours will not be the same as mine. Select the dimmest photo of the size you are going to take and divide that into the memory-card size. (Darker photos take more kb.)