Masoud Posted April 10, 2019 Share Posted April 10, 2019 Hello; When I set "Focal Length" of Houdini's camera to 35mm, is this equal to a real 35mm camera lens? Thanks. Quote Link to comment Share on other sites More sharing options...
davpe Posted April 11, 2019 Share Posted April 11, 2019 hi no. in order to match real camera framing you need to match focal length and aperture size as well. then you should get more less the same view. Houdini camera doesn't take into account lens distortion and that sort of things thou, so it's never gonna be 100% accurate. These minor optical properties are typically matched in comp stage (or you'd have to write a lens shader to do that for you) Quote Link to comment Share on other sites More sharing options...
berglte Posted April 11, 2019 Share Posted April 11, 2019 (edited) Link to the docs (see the Aperture section): http://www.sidefx.com/docs/houdini/nodes/obj/cam.html#view Reference for the 24.89mm aperture width that's mentioned in docs: https://en.wikipedia.org/wiki/Super_35 Edited April 11, 2019 by berglte 1 Quote Link to comment Share on other sites More sharing options...
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