camera help

[engaged]

i have a GE A835 8MP Digital Camera from argos right, i can only hold 10 images on it because they are so bloody big, 3264x2448 pixels to be exact. Does anyone know how to make them smaller whilst on the camera like, so i can capture more images and dont have to resize in photoshop each time?

[scottish]

http://static.compusa.com/pdf/ge_a835_manual.pdf