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Message: <blockquote data-quote="Chosun Juan" data-source="post: 3439260" data-attributes="member: 92780">Hi Ed,I know that what we see can be very unreliable, but I think those optical illusion pictures are fairly cheeky   |<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick out tongue    :p" loading="lazy" data-shortname=":p" />|  , and maybe even a little bit scurrilous!  :eek!:    3<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" />Looking at them on a mobile phone, let's you zoom in, take screen shots and see the resulting histograms. There seems to be some shading added as would be cast by the cylinder. It's not until you crop right in on only a part of a square that the Grayscales line up. If the eye is easily fooled then it seems so is the camera?!  :h?:[ATTACH]594739[/ATTACH][ATTACH]594740[/ATTACH][ATTACH]594741[/ATTACH][ATTACH]594742[/ATTACH][ATTACH]594743[/ATTACH]Most intriguing was that the further I zoomed in, the harder it became to see the gorilla until it disappeared entirely!   :-O   hahaha I agree about the adaptation and conditioning   -   I will be certain to recalibrate myself back to neutral before viewing a SLC again .... I'd like to get to the bottom of that one!   :cat:NOTE:  That when I first discovered (first became aware of) my individual eyes different colour casts, I tested each barrel of each bin individually against first one eye then the other - even turning the bins upside down since I was having such trouble believing what I was seeing!  Eventually the bins were ruled out and I was left with me!  After I calmed down a bit from totally freaking myself out     (o)<   I started to think to myself - hey this is really cool   <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite6" alt=":cool:" title="Cool    :cool:" loading="lazy" data-shortname=":cool:" />  ..... I've got my own inbuilt dynamic range and contrast enhancing mechanism  - I kinda felt like a super-predator!   :king:  ....  (it made a welcome change from my usual feeling of being like sabre-tooth tiger fodder with my four eyes!  <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" />Chosun   :gh:</blockquote>

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