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For RAW pictures, What do you have ISO set to? (Is Auto ok?). Do you also set (internal) flash to off? Do you use external flash?Just wanted to emphasize this. Shooting in RAW, manual white balance isn't that important (though I still set it). However, for video, manual white balance is a must. I have my RING FUNCT button set to manual WB
learn about RAW photography. Set the camera to record a Raw image + jpeg. Even if you dont know how to process raw images right now you will learn in the future and you will be glad you have these files.
In a nutshell: the cameras sensor can take in more information than you can see or the screen can display. The camera normally will display the best images according to the settings and dump the rest of the data. If you shoot in RAW then the camera will record all data from the sensor (file sizes will be larger) but later in the computer you can lighten or darken or change the color balance within reason without damaging the image. You may be able to pull details out of the shadows and pull details out of bright highlights too.
When you shoot in raw the white balance setting isn't important because you can change this later in the computer. The underwater mode does work well though for simple quick images to show your family.
Bottom line. even if you don't know what raw is or how to use it right now - go ahead and set the camera to record a raw file. It will take up more space on your card, but you may be happy you have them later when you want to go back and adjust some images.
Do you have a ttl capable strobe. By deafualt, most, if not all, Canon cameras (the s100 included) do not support ttl in manual mode
You can get around this by using CHDK, using manual mode and the ttl on/off script (this allows ttl control in manual) or by setting to Tv (which does use ttl) and forcing the aperature to what ever setting you want in the CHDK settings and adjusting the shutter to your desired setting normally (usually 125 underwater)...kind of a back door manual
I just spent a week using Tv with the overided aperature in CHDK....worked well...some of the early shots were underexposed until I played around with fine tuning shutter, aperature and having the flash diffuser on or off...I tried to not play with ISO and I kept at (Canon) 100 (not CHDK 100)
You can't. RAW is always the complete and raw data from the image sensor. No processing is applied to the raw data, so it's not cropped either. The files will always have the same resolution. If you want to crop it, you do it on your PC.I used my S100 for the second time underwater on the 16th. I had set my jpg size to L and the format to 16:9 since that's what my monitors and TV are. However upon downloading the RAW file is 4:3 and the JPG is 16:9. Anyone know of a way to have them both be 16:9?