Optical trick

alc59 · **Posted:** Wed Jan 25, 2012 9:44 am **(#1)**

stare at the red dot for 15 - 20 seconds then look at a blank wall and blink a few times

molly · **Joined:** Apr 07, 2010 **Posts:** 14182

Wow that is cool. scary too

Rod · **Joined:** May 16, 2010 **Posts:** 16201

Pretty neat.

2-ton · **Posted:** Wed Jan 25, 2012 8:39 pm **(#4)**

cool...wonder what the scientific reason is for that to work.

bkh1914 · **Posted:** Wed Jan 25, 2012 11:08 pm **(#5)**

2-ton wrote:

cool...wonder what the scientific reason is for that to work.

2-ton · **Posted:** Thu Jan 26, 2012 1:04 pm **(#6)**

fascinating....I might try to make my own negative image just for fun.

***works a charm, lol

Oregonian · **Posted:** Thu Jan 26, 2012 1:47 pm **(#7)**

Wow, in color even. That must be what the 3 different colored dots do.

2-ton · **Posted:** Thu Jan 26, 2012 3:57 pm **(#8)**

I can make black and white fine, but my trials at colored ones aren't so great....any ideas for making a good one?

RobA · **Joined:** Jul 14, 2010 **Posts:** 697

2-ton wrote:

I can make black and white fine, but my trials at colored ones aren't so great....any ideas for making a good one?

The example is just a straight Negative filter... maybe the dots do something?

-Rob A>

2-ton · **Posted:** Thu Jan 26, 2012 5:36 pm **(#10)**

Yes, all you have to do is invert the colors and add the dots! :mrgreen: