This is a somewhat confusing question, but I'll try my best to write it out properly. My digital camera (Canon A520) has a bunch of different photo size ("resolutions") that I can choose. Stuff like 640x480 and 1024x768. My question is, does the resolution affect the quality of the image? I'm actually aiming for small photos (nothing bigger than 640x480, and even smaller ones). So if I choose a huge resolution like 1024x768 then reduce it (on my computer software) to 640x480, will this give me higher quality than simply taking a photo with 640x480?