Shady Optical Illusion

what the...

fuck you man :P
now i think i'm blind...
why can't i see the difference between colors ?!

really? come on people pause the video at 0:01 okay, do the trick on screen with just your finger.
this is not altered!

im colour blind, red - green deficiency and heck i see the same colours

nice

as greenpro2009 has stated the video has not been altered.. i KNOW this only because i've made this illusion before and it does work.. what you may be seeing could be a result of your computer monitor trying to brighten/darken video, or even the camera used by greenpro may have adjusted some levels.. either way ive been watching a few of greenpros videos now, and i highly doubt this is a guy trying for 5 seconds of fame.. he's trying to educate you.

What happend if you put 4 pens ?? would it look like a single colored papper?

great question...it's been asked quite a few times within all of these comments too. it does work (you can see a very slight difference in lightness/darkness with the far left and far right rectangles...mostly because you already know that they are all different)...most people say they did just that and it works though...thanks for watching and commenting!

dont you mean 3?

yeah. i just tried it. it all looks like one colour. its so weird