Alex, (I can call you Alex?

), You need to understand how a light meter works. A basic light meter reads for "Medium Gray". If you fill the viewfinder with a white wall and center the needle, the unadjusted image will be medium gray. If you fill the viewfinder with a black wall, center the needle, the unadjusted image will be medium gray. If you're using a gray card, then a light meter will be spot on. Otherwise, the meter is more of a guide than law. The meter gives you medium gray and you need to compensate accordingly. The modern digital meters, vis-a-vis metering modes and complicated algorithms, makes metering more accurate for general photography. If you want to get together and shoot something PM me, we can meet halfway.