Ken Papai , Apr 19, 2007; 02:53 p.m.
Yes -- shoot in RAW, buy a book on RAW, what camera you use?
Also improve your software post processing skills. What do you use, Photoshop? Do you know the difference between sRGB and Adobe RGB?
Lens also affects your color and contrast.
ISO does too. Don't expect the best from ISO 400. All are basic concepts.