In article <4ds2bs$ahp@eaglecap.eosc.osshe.edu>, susanta@emily.eosc.osshe.edu says...

>how accurate are these lights? the right-on dot on my 6006 stays on >for too long for my taste (when I shift focus, it seems to indicate >that the image is sharp when it really isn't). does it mean that I >can't rely on this light for focusing in the near-dark situation?(..)

You got it! I brought the same thing up in a thread about 2020's,
and the same applies here: the AF "in focus" indicators lie!!!
(But, then, so too does the AF itself rather too often.)
Hope This Helps