Thanx BJ. Actually Nikon does not recommend using plus or minus compensation with matrix since the matrix data bank may be making its own adjustments. They recommend using center or spot with compensation. Also the F100 does not have RBG (color)metering as the F5--if that's you are referring to. I think the vast majority of Nikon shooter use slide and color neg--so it's natural they would bias their matrix metering for those films. I used the N70 for about 5 years and had one of the early models from '95. It's matrix was more balanced for b&w negs. I had a later mode. IT's matrix was more like the F100. cheers. Thanx for your interest.