Archived posting to the Leica Users Group, 2011/01/30
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I think "a couple of hours of shoveling" is the operative phrase. I would be hallucinating at that point. Cheers, Nathan Nathan Wajsman Alicante, Spain http://www.frozenlight.eu http://www.greatpix.eu http://www.nathanfoto.com PICTURE OF THE WEEK: http://www.fotocycle.dk/paws Blog: http://www.fotocycle.dk/blog YNWA On Jan 28, 2011, at 3:56 PM, Lawrence Zeitlin wrote: > Yesterday afternoon, when shoveling our recent 15" snowfall off the > driveway, I paused at the mailbox to get the day's mail. I set the letters > down on the snowbank to close the box when I noticed that all the white > envelopes appeared a pale shade of blue. When I took them in the house they > appeared normally white. While I have no definitive explanation for the > "blue" envelopes, I have written before that the eye, mediated by the > brain, > does not see reality but sees what it expects to see. We alter the visual > scene until it conforms to our expectations. Colors are viewed in their > "proper" hues despite ambient illumination, shapes are altered, sizes > changed to offset their diminishment by perspective, and so on. Reality is > in our mind, not in the objective scene. > > All I can suggest is that after a couple of hours of shoveling I expected > the snow to be white despite the fact that it was yellow tinged because of > the late afternoon sun. By shifting the color balance of the scene to meet > my expectations, perhaps the truly white envelopes were shifted into the > blue. Does anyone have an explanation? > > Larry Z > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >