Alan.Peery@samba.acs.unc.edu (Alan Peery) (03/19/91)
Tom Neff (tneff@bfmny0.bfm.com) recently said > I'll wager that given the same screen and image, nearly everyone > notices interlace to the same degree. This is not true--ask your optometrist about "flicker fracture frequency". It boils down to everyone having a slightly different frequency of flickering light that they are sensitive to. This also varies from time to time depending on factors like lack of sleep (something quite common among those of us who read the Usenet) and stress. You are also more likely to pick up the flickering out of the corner of your eye than when you're looking straight at something, if I recall the optometrist correctly. Why do I know about this? My wife is much more sensitive to flicker than I am (her "fff" rating is several hertz higher than mine) and she could never understand why I could stand to work in interlace mode on my Amiga. It can also affect you at places other than in front of the computer screen. After getting her some specially coated glasses the number of headaches that she got at work went down _radically_. (I'd even call the place badly lit...) If bad lighting bothers you more than it does most people, and flickering lights bother you more than most people, check into it. Alan Peery peery@outlaw.uwyo.edu -- ============================================================================= Extended Bulletin Board Service, Research & Development Office of Information Technology, University of North Carolina at Chapel Hill internet: bbs.acs.unc.edu or 128.109.157.30