To enable the Optio S4 raw mode. (Thanks to Suriya Matsuda) -------------------------------- 1. hold down the "menu" button and the "flash" button and press the power switch to turn the camera on. 2. the screen will show something similar to this. ++ KB359 ++ PR:03. 09. 18. 20. 56 LD1. 45 MI: 19 3. Press "right arrow" twice. 4. Press "Menu" button. -> A secret menu will appear with many options. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! CAUTION CAUTION CAUTION CAUTION CAUTION CAUTION CAUTION Do not try to play with any other menu because it could render your camera useless. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 5. Using the 4 way rocker button, navigate down to number 6 : BAYER MODE and press OK 6. The screen will say "BAYER MODE OFF". Press the right button once. Now it will way "BAYER MODE ON" 7. Press the menu button twice to exit the secret menu, and the camera will turn on. With each picture taken, the camera will record two files, a .RAW file and .JPG file. It would continue to record raw file until the camera is turned off.