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Kaleidoscope Effect


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#1 craig bass

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Posted 15 November 2014 - 09:51 PM

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:

 

Kaleidoscope Effect.jpg

 

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.

 

Craig


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#2 David Mullen ASC

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Posted 15 November 2014 - 10:54 PM

There are prism filters that do this effect though you may have more control doing it in post.
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#3 Dennis Couzin

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Posted 16 November 2014 - 01:45 AM

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, 16 November 2014 - 01:46 AM.

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#4 craig bass

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Posted 17 November 2014 - 11:47 PM

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?

 

Thanks!

 

Craig


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