Interesting. The camera mentioned above that I have does sometimes do a blue spotty thing around subjects when I was trying to manually focus. I thought it was some some sort of weird bug. I'm going to have to take it outside sometime & do some tests...Warren Faidley said:With peaking, a blue (or other selected color) haze or highlight glows around the subject when it's in focus. This makes it easy to focus though the rear screen without looking though the viewfinder.
I have done the same thing but if you are off focus even a little you can tell. Do you use the yellow highlights to zoom in focus?I usually leave the 100 on manual focus though, the auto-focus is good, but I like to have control over my focus and not trust the auto-focus.