1) In general, the file size of captured image depends on which image size and quality you have selected. Since the image size may vary depending on scenes and subjects, these are approximate values only.
Super Fine: 9.1MB/5.6MB/3.6MB/980KB
Fine: 1.6MB/1.0MB/680KB/280KB
Std: 960B/620KB/420KB/200KB
Econ: 590K/390KB/300KB/160KB