Aah ok but there are no always IR light in the environment. Just testing indoor for example there are near nothing of IR light.
Outdoor sunny day have much more IR light. But cloudy there are a few IR light.

So I guess if I quit the IR filter I will get bad pics only in sunny days. Just of course the best time to take landscape pics. But that is acceptable.

Am I right?

Anyway I just noticed that the N900 cam is not so good to take IR pics. And as I can see, it is very difficult to take out the IR filter. So I don't will try it, I guess can damage the Carl Zeiss lens :P

But, why just the IR light is white in the display and not red if it is only captured with red pixels sensors?

And as you can see in TV it is greenish not red. I don't understand that, lol.

Thanks to all.