Quoting Brick Freak
If my comment ever gets posted... Basically I provided links to two cameras that caught my attention.
Might as well ask this: Can I upload photos from a 12 megapixel camera?
You can upload any picture size, but MOCpages will resize it if it's bigger than 800x600. My camera is 15.1 megapixel (4752x3168 jpegs), but I resize all pics to 800x600 so they load in MOCpages a lot faster.