Converting XSI_FOV 2 real FOV 2004-05-12 - By Sandy Sutherland
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On this - can anyone point me in the direction of a table that gives the
inch sizes for filmbacks!! Saves me having to pop into Matchmover to check!
Ta
S.
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Sandy Sutherland Digital Doodeller/Technical Director
The Refinery (Cape) http://www.refinery.co.za
mailto:sandy@(protected)
(P) (+27 21) 480 3132 (F) (+27 21) 480 3101
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-- -- Original Message -- --
From: "jordibares" <jordibares@(protected)>
To: <XSI@(protected)>
Sent: Wednesday, May 12, 2004 10:23 AM
Subject: Re: Converting XSI_FOV 2 real FOV
> On Wed, 12 May 2004 12:35:23 +1000
> "ozu's mailbot" <mailbot@(protected)> wrote:
>
> > Actually, if you are working with XSI, you should forget about the FOV
parameter altogether, and ONLY use the FocalLength parameter
> > In the camera property, open the tab called "Projection Plan" and enable
the check box. set the film aperture to the values needed, and you now have
a focal length control that uses real camera values.
> > Remember that according to the American Cinematographer's Manual, Focal
Lengths are in mm and filmbacks are usually defined in Inches (don't ask
why, it just is, and sof follows the same convention).
>
> And the digital camera manufacturers use mm instead.
>
> jb
>
> > While you are at it, delete the stupid camera interest, and change your
rotation order for the camera to be ZXY so that the rotation order match a
live action pivot, which is Pan,Tilt, Roll...
> >
> > OO
> >
> > Robert Moodie wrote:
> > This old chestnut again.
> >
> > In order to match in XSI what you have in a real camera you need the
other
> > parts of the equation: Aperture and Focal Length.
> >
> > Assuming you have this the following equation will create a 'real'
camera
> > for you.
> >
> > (aTan ( 1/2 Aperture Width / Focal Length )) * 2 = FOV Horizontal
> >
> > p.s. You need to set the aperture and focal length in the Camera PPG >
> > Projection Plane.
> >
> > -- -- Original Message -- --
> > From: "lucas" <lucas@(protected)>
> > To: <XSI@(protected)>
> > Sent: Tuesday, May 11, 2004 7:57 AM
> > Subject: Converting XSI_FOV 2 real FOV
> >
> >
> > Hi List,
> >
> > does anybody know of a chart/list that shows the XSI Field-of-View
> > compared to the ones from real Cameras ?
> >
> > Thanks !
> >
> > Lucas
> >
> > -- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
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> > LUCAS WENDLER (3D ANIMATOR)
> > FIFTYEIGHT3D GMBH UNTER DEN EICHEN 5 65195 WIESBADEN GERMANY
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> >
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