I was reading through an old 2004 issue of a photograpahy magazine (at 10 cents each for old ones at libraries, you should go! equipment may be old but theres loads of stuff on techniques, shot types, tips, and tricks of the trade, and it wont cost you a penny. okay, yes it will... but only 10 lol) So anyway i managed to lose that particular issue the next day lol. in the meantime, i remember seeign an adertisement for a filter, which i forgot what it does, but in the picture it showed an increase in dynamic range (the dark parts got a little brighter, and the overexposed parts go better exposed). what kind of filter was it?