Quote:
Originally Posted by little col
i think i am now ready to start imaging in raw mode on the 300d but as i have never used this setting i was wondering how much info am i losing in jpeg and how does imaging in raw effect stacking and processing 
thanks colin
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Hi Colin,
Ever since I switched to RAW I've never gone back to jpg. Yes it's more time consuming but the benefits far outweigh the "disadvantages".
First off you are dealing with the raw data straight out of the camera.
RAW images (in camera) are in 12 bit/channel as opposed to 8 bit for jpgs, or 4096 steps per channel as opposed to 256 steps per channel, which gives you far more room to manipulate the levels, histogram, colours etc !
Also RAW allows you to make certain adjustments that can't be made if shot in jpg (you loose information to minimise file size).
My cameras are all set to record both RAW and jpg at the same time and this is my personal preference but from memory the 300D does not have this feature, you can only save in either RAW or jpg.