Harris Shutter Effect by Morgantao

Original and cool idea to make this filter. Weird and different effects can be done with this although is strange the result

I released this one as a snippet because:
A) It's terribly simple
B) There's no way to show what it does in the filter page
C) It comes with no presets.

The website SpaceRay post above has some nice samples. Thanks, SpaceRay

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Harris Shutter where traditionally it is a CMYK process

Technically speaking, you're correct, since everything we see around us except TV's and monitors work in CMYK... All the photos in your family album are CMYK.
Also, it's interesting to know that modern digital photo develop machines actually work by shining 4 lights (Red, Green, Blue, and IR) through a negative, to a scanner. The scanner then tells a special laser device where to shine different color lasers onto the light sensitive paper, before it goes through the chemicals that develop it to a photo we can see.

The origins of this technique are from the early 1900's. A photographer back then didn't have color film, so to make a color photo, he had to do 3 exposures of the same subject, once with a Red filter (Gel) on the lens, once with a Green filter, and once with a Blue filter. Then the negatives would be used one after another in order to developped one single photo.

Robert S. “Bob” Harris of Kodak invented a simpler way to make the 3 exposures, on a single shot, instead of three, by using a strip of 3 filters and 2 opaque blocks as a shutter. Hence the term Harris Shutter.

Technical stuff aside, here are nice examples of early color photography by Sergey Prokudin-Gorsky (1863-1944):

http://identicaleye.blogspot.com/2009...-1863.html