what level of magnification is equivalent to 100% on screen? I know when I had both the D700 and D7000 it was 6 clicks of the 8 that gave an accurate equivalent of what one could expect to see on a screen at 100%. So far I've felt either 7x or 10x should be it. I don't think 14x is, but don't really know. Any ideas out there about the real story on this.