overexposure causes color to become pale, underexposure causes the color to become dull.

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Added on September 23, 2007, 8:25 pmset to +ev

for the first two pics i don see much problem with that...and the tyre pic seems to be fine to me...only the third pic is more obvious... i am using laptop now so i cant really see the colors accurately...

wat cam n filter r u using? ur 1st pic seems a bit overexposed, 2nd pick just fine. 3rd pick seems underexposed.

if u come KL remember find me to test it

What ISO were you using?

A camera will never able to produce/capture exactly what our eyes see. Optics are not perfect, so does the sensors and other electronic parts. That's why you need post process to make it to near perfect.

However there are a few ways to make a shot presentable without much post process:
1) Get a better equipment. Better camera, better/larger sensor and better lens
2) Do not shoot under harsh sun light. The best time to shoot is in the morning or late afternoon when light is warm
3) Under expose a little. -1/3 to -1 depends on the condition. The color will be richer and more saturated

I've been told that post process is 50% of producing a shot, especially when you are shooting RAW. Taking a well composed and well exposed photo is just half of the work.

One more thing, resizing to smaller resolution often causes the shot to become soft, so sharpening is often required. But still it depends on individual liking