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craig bass

Kaleidoscope Effect

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Hello all!


I was hoping that someone on the forum might have insight on how to achieve the effect present at 48 seconds in the following video:



Additionally, a still is attached for reference:




Is the filmmaker simply placing a prism in front of the lens? If so, any recommendations on the best sort of prism for this?


Would love to hear your thoughts.



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It's a nice video, best watched in HD. The large chromatic aberrations show that it was done with a prism filter. Part of the dreamy effect Craig might be liking is due to that chromatic aberration. That exact look will be difficult-to-impossible to emulate in post.


Color aberration is due to the wavelength-by-wavelength action of the prism. A film picture cannot record the original wavelengths, only the original hues. So, for example, a yellow laser line against a dark background will not make color fringes though the prism. But in the film picture, the laser's yellow is 2/3 of the spectrum, green + red, so a post production prism emulator which tries to emulate color aberration, will give the laser line fringes.


In short, there's some danger of a post effect that lacks chromatic aberration and is too clean or one with faked-in chromatic aberration that looks so.

Edited by Dennis Couzin

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Hi fellas,


Thanks so much for the insight! I am going to look for a prism filter to utilize with my Zeiss ZE E-mount lenses. Any recommendations on which specific filter to use/where to start?





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