First of all - i am newbie in digital photo. Not TOTAL newbie, but also not expierienced user
So i am wondering why not to make DSLR show on LCD what camera sees (like on compact digital cameras). I know basic construction of DSLR, but is it not possible to make such "magic" swich which will turn that mirror away and project what lens sees directly on sensor, and then on lcd!
Maybe you'll think that i am a bit crazy

but i just want to understand why not to make such "feature"