craig bass Posted November 16, 2014 Share Posted November 16, 2014 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. Craig Link to comment Share on other sites More sharing options...
Premium Member David Mullen ASC Posted November 16, 2014 Premium Member Share Posted November 16, 2014 There are prism filters that do this effect though you may have more control doing it in post. Link to comment Share on other sites More sharing options...
Dennis Couzin Posted November 16, 2014 Share Posted November 16, 2014 (edited) 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 November 16, 2014 by Dennis Couzin Link to comment Share on other sites More sharing options...
craig bass Posted November 18, 2014 Author Share Posted November 18, 2014 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 Link to comment Share on other sites More sharing options...
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