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Houdini Camera Aperture for 35mm film footage


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Hi all,

This is something that has stumped me for the longest and I'm hoping that someone has some answers that don't make me feel like I'm solving a problem from Good Will Hunting. I'm currently working on a flip simulation that that will be composited over the ceiling of a room (basically creating a turbulent water ceiling). I'll be compositing in Nuke and obviously want the simulation and renders to line up to the footage that was shot. The footage was shot on 35mm film and the lens was a 21mm Masterprime lens. Does anyone have any idea how I can figure out what the Houdini Camera Aperture setting should be set to in order to get my camera in Houdini to match the footage?

Any help that I can get with this would be greatly appreciated!

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Justin

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