[timven2005]

1)我用緊S9500，其實RAW 比 JPEG 差幾多？
2)我把RAW 轉做TIFF 時，原本900萬像素，無拿拿變左1700萬像！
不知是否正常？

[kingkonghk]

唔正常, raw, tiff, jpeg來講, jpeg應該係最差

[pl]

RAW is similar to negative in film camera, that's why some people call it "Digital Negative". It is the RAW data capture by CDD without in-camera post processing.

All setting (i.e. WB, sharpening, image size & quality and even exposure compensation) can be modified in computer after taking picture. But ultimatly you still have to convert it to jpeg before you can get it print or publish in the web.

So if you need lots of touch up work to your photo, use RAW.
For point & shoot photos please use jpeg!