As somebody else already suggested, perhaps this is a combination of the screen affecting the reading in the central portion of the viewfinder (which is why users are warned not to use spot metering) and using the multi-segment metering mode. A slightly lower reading in the middle of the screen could trigger one of the backlight compensation programs, which would result in overexposed images (backlighting compensation weights the exposure more towards the reading from the central sensor, so it's rather more like using spot metering).
On Wed, Feb 15, 2006 at 02:53:28PM +0000, [EMAIL PROTECTED] wrote: > Logic would suggest that if exposure were affected by a change of screen, it > would be off by a consistent amount in a specific direction. If exposure is > "all over the place," I would think that it can't possibly be the fault of > the focusing screen. > Paul > -------------- Original message ---------------------- > From: Charles Robinson <[EMAIL PROTECTED]> > > On Feb 14, 2006, at 16:52, Fred wrote: > > > > >> Spent several hours reading the reports once I got on the forum > > >> from the > > >> DPReview. The KatzEye looks like a winner, so now am just waiting > > >> for the > > >> money to fall into my hands :-) > > > > > > Well, the latest report thread really criticizes the Katz Eye > > > screens. The > > > current consensus (at least for those speaking the loudest lately) > > > is that > > > the focus aids are great for focusing, but that the effect on > > > exposure is > > > deleterious (very inconsistent exposures, generally overexposing by > > > unpredictable amounts). However, I have one, and I'm not about to > > > give it > > > up yet > > > > [snip!] > > > > ..and I have noticed no effect at all on exposures. I believe that > > the changes are there for people, but I guess I'm just a putz who > > can't see it. > > > > It's just wonderful to be able to pop the exact focus in. So nice > > that I've had the autofocus turned off for the last week and a half - > > even with the kit lens in place! > > > > I live in fear that one day I'll discover a big exposure problem > > somewhere, but so far I haven't noticed anything. > > > > -Charles > > > > -- > > Charles Robinson > > [EMAIL PROTECTED] > > Minneapolis, MN > > http://charles.robinsontwins.org > >
