[Sidefx-houdini-list] film size to digital focal length

Adrian Lee dryrainstudios at gmail.com
Tue Jun 19 06:39:44 EDT 2007


Thanks for the help lads,

Jeff - Thanks for the info. I think 35mm academy is a ratio of  1.38:1 or it
is according to this site http://www.gcmstudio.com/filmspecs/filmspecs.html

Luca - Doing fine buddy. lets do food soon?!!

E

On 19/06/07, Luca Zappala <luca at cinesite.co.uk> wrote:
>
> Hi Ed,
>
> How r u?
>
> I was thinking this would get you starting:
> http://odforce.net/wiki/index.php/Real-world_camera_matching
>
> Luca
>
> Adrian Lee wrote:
> > Morning all,
> >
> > Does anyone have a reliable way of equating given focal length to
> > houdinis
> > cameras. Or maybe a look up table
> >
> > I  have a shot and I am unable to track and get the info that way.
> >
> > The shot info is limited, but I have been given,
> >
> > lens - 40mm
> > medium close up focus - 5 feet 6 inches
> >
> > I know it is shot on a phantom high speed camera with a a inch x inch
> > sensor
> > producing a 1024x1024 image.
> >
> > Any help would be very welcome
> >
> > thanks
> >
> > Ed
> > _______________________________________________
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> > Sidefx-houdini-list at sidefx.com
> > https://lists.sidefx.com:443/mailman/listinfo/sidefx-houdini-list
> >
> >
>
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