Harris Effect

[MarkyLandon]

This is a digital recreation of a film technique called the Harris Effect. I used a tutorial in a magazine, Digital Camera (I think)

You shoot 3 seperate shots of the same composition. Most of the things remain stationary but one aspect of the shot should be dynamic and move between each frame (in this case the water)

Each shot has a different digital filter applied in Photoshop, one red, one green and one blue. The stationary items are white (R+G+B= white) as they appear in all frames, whilst the water appears the colour of the filter applied to the single shot it was from.

The lighting was provided by a canon 580EXII @ 1/2 power into 42" umbrella camera right. The shots were triggered by a remote release to avoid moving the camera betweent he three shots. There are actually 3 glasses and I poured water into each, taking a shot as I was doing it, 3 seperate times, one for each glass. You then take the red channel from one shot, the blue channel from another and the green channel fromt he last, superimpose them with a mixture of muliply and screen blend modes and you have the "digital harris effect" There is a flickr group that explains more.

The image is made to show only the "interesting" bits by using the find edges" filter in CS3. This turned the white background black.




3 Glasses by Mark1970Vintage, on Flickr

[arkusm]

Nice effect. Kinda Andy Worhol-ish... Thanks for sharing.