If you use a gradient as a vignette with a non gaussian (linear but in 'srgb') falloff then you will get a mach band effect.
Use a hard matte, blur it to a bajillion to get it soft and use the matte to reveal or matte in the same footage gamma'd down (brightness/gain in visually linear is not the same as exposure).
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If you use a gradient as a vignette with a non gaussian (linear but in 'srgb') falloff then you will get a mach band effect.
Use a hard matte, blur it to a bajillion to get it soft and use the matte to reveal or matte in the same footage gamma'd down (brightness/gain in visually linear is not the same as exposure).
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