Starter’s Guide to Specialty Filtration
Summary: Ryan covers speciality filtration you can use to solve technical problems and create unique looks for your productions.
Length: 2:10 minutes
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Introduction
In this video, we wrap up our look at effects filters by examining specialty filtration.
Specialty Filters
Specialty filters allow you to solve technical problems that come up on set, and they allow you to create a highly stylize looks. They have names like diopter, streak, center spot, star, among many others. An example of over coming a technical issue would be changing the minimum focus of your lens.
A diopter allows you to focus closer than what the lens was made for. These filters also come as split diopters. A split diopter covers your frame on one side, and it is empty on the other.…
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Hey Ryan. Thanks for sharing your knowledge.
I have a question. Do you know Bruno Aveillan, a French director?
https://vimeo.com/173057469
It seems he uses split diopters (with something else in front of his lenses) to get this kind of amazing flares and distortions in his shots.
Do you have any idea on how to achieve this kind of effects?
Thank you.
Roger
Hey Roger, I do know know Bruno Aveillan, but his work is impressive. In looking at the video you linked to, I don’t think he uses split diopters. The flare effect you are seeing is most likely achieved by smearing petroleum jelly (Vaseline) on an optical flat clear glass filter. There is beauty in the simplicity of this effect, especially since you can change where you place the petroleum jelly on the filter, change the amount, and adjust the thickness.