I always get confused with the way ccd size is expressed as imperial.
How is 2 thirds of an inch 9.59mm? I made it 16.93mm. Is the ccd
measured diagonally?
-----Original Message-----
From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf
Of Francois Lord
Sent: Wednesday, January 25, 2006 5:12 PM
To: XSI(at)Softimage.COM
Subject: Re: "real" cameras in xsi
Most HD cameras have a filmback of 2/3" (9.59mm wide). You could try
that.
Gene Crucean wrote:
> Holy thread revival batman!
>
> I'm still a little confused by this stuff (I know I know). So in
> boujou, it wants the film back size (which I don't have, but I know it
> was shot on a Sony HDW-5900H), and the focal length which is 3'2". I
> tried searching on the web for the film back size of that camera but
> no information for that camera even comes up at all. So I guess my
> first real question is does anyone know the FB size of that camera?
> The only information that we have on the camera is the lens (7m which
> I'm assuming is a typo meant to be mm), the foc which is 3'2" and the
> PSF which is 23.98. Well and some other random info like height, tilt,
> Tstop, roll etc.
>
> I ran a quick track on it without using the correct FB info and no
> surprise it comes into xsi with a FOV of something like 12 (way off
> visually). I'm a little confused with all this conversion stuff so any
> input would be appreciated.
>
> Thanks guys
>
>
>
>
>
> On 6/15/05, *Robert Moodie* <robertm(at)hybride.com
> <mailto:robertm(at)hybride.com>> wrote:
>
> While we're on the subject - here's a little something:
>
> Run this (vbs) script:
>
> NewScene
> SelectObj "Camera_Root", "BRANCH"
> ToggleVisibility
> DeleteObj "Camera_Interest"
> SelectObj "Camera"
> Rotate , 0, 0, 0, siAbsolute, siPivot, siObj, siX, , , , , , , , 0
> GetPrim "Null"
> GetPrim "Null"
> Translate , 0, 0, -20, siAbsolute, siPivot, siObj, siZ, , , , , ,
> , , , , 0
>
> Now, hide the grid in the camera view and in any other view - NOT
> THE CAMERA VIEW - select and rotate (pan) the camera.
> Watch what happens to the nulls - there is no parallax.
>
> Now run this:
>
> SetValue "Camera.kine.local.pposz", 1.5
>
> (What we are doing is offsetting the camera pivot to be 'behind'
> the lens - to see the pivots turn them on in Visibility options)
>
> Now select and pan the camera as you did before and watch the
> magic of parallax.
>
> This is no limitation of XSI - it happens in all 3D apps - but
> basicaly the pivot point of 3D cameras is also the Nodal point.
> And this never happens in real life.
>
> For further explanation read this:
> http://360texas.com/tips/nodalpts.htm
> <http://360texas.com/tips/nodalpts.htm>
>
> Hopefully this may be a little help to someone. If you know the
> make and models of your 'real' cameras, tripods or dollies you can
> set the pivot offset values to match exactly what was on set.
>
> _rob
>
>
>
>
>
>
>
>
>
> --
> -gc
---
Unsubscribe? Mail Majordomo(at)Softimage.COM with the following text in
body:
unsubscribe xsi
______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please visit http://www.messagelabs.com/email
______________________________________________________________________
---
Unsubscribe? Mail Majordomo(at)Softimage.COM with the following text in body:
unsubscribe xsi
