I've gotten into doing "tricolor timelapse" photos, tagged with
tricolortimelapse .
Basically, the idea is that you blend R, G and B photos (or CMYK) in separate layers. The image is almost the same between layers, with just a small amount of motion. The motionless parts stay "normal" in the blend but the moving bits are strongly colored.
Sistine chapel
Here's one of the best shots and then all the photos in the series :
http://www.flickr.com/photos/mbgmbg/6135389486
http://www.flickr.com/photos/mbgmbg/tags/series10910
For this series, I turned each layer in a black-and-white image. Then piled up six layers.
For the bottom three, I only blended R , G or B channel at each layer.
Top three I left out a color -- i.e. only leaving out R, G or B. Opacity of top three each is ~35%.
Feet in Pool
Here are some notes: most images are a blend of 3 layers, using blending options. Set each layer to only blend one of the three primary colors (i.e. R, G, or B) and then set its opacity to ~50%. Each layer should have its levels adjusted so it's fairly light (as one is going to be layering a number together).
http://www.flickr.com/photos/mbgmbg/tags/photostream5x10817linesinpool
Some specific here: layer opacity ~75% with a bottom layer just blending R, G, or B channel
Museums (Met, Moma, Guggenheim)
http://www.flickr.com/photos/mbgmbg/2253441636
http://www.flickr.com/photos/mbgmbg/6045417228
http://www.flickr.com/photos/mbgmbg/3833881876
Spinning the timecapsule
http://www.flickr.com/photos/mbgmbg/tags/series20107
Initially I took the four original images, put them in layers and optimally superimposed them (using the "free transform" function in photoshop. Then put the bottom layer to gray scale and set the other layers to blend just the R, G or B channels (with fill opacity of 100%). I also tried blending with all colors. Here's the final products:
http://www.flickr.com/photos/mbgmbg/6671290629
http://www.flickr.com/photos/mbgmbg/6671289813
Finally, I changed the saturation to get some posterized effects:
http://www.flickr.com/photos/mbgmbg/6671292445
http://www.flickr.com/photos/mbgmbg/6671291377
Found this a useful resource on the free transform tool:
http://www.gosammy.com/2007/05/28/having-fun-with-photoshop-superimposing
Here's a website for the actual sculpture (NY Times time capsule by S Calatrava) :
http://www.amnh.org/exhibitions/timescapsule