 | | | "real " cameras in xsi | "real " cameras in xsi 2005-06-12 - By Dirk
Back
To determine the field of view use this formula
alpha = 2*arctan(d/(2*b)
To dertermine the focal length convert the formula as follows
b = d/(2*tan(alpha/2))
with
alpha = aperture angle (FOV)
d = 24.892mm (for horizontal)
d = 18.912mm (for vertical)
b = focal length in mm
Pay attention to the different film back values for the horizontal an
vertical measurement.
XSI unfortunately don't convert vertical to horizontal FOV automatically
if you switch from one
to the other.
Stefan Andersson wrote:
>Is there anyone out there that has a conversion script or something to
>convert camera info to "xsi camera info".
>When I try matching footage and have all the info from the client, I
>still end up "eyeballing" it because I have no idea on how to convert
>the info to xsi.
>
>regards
>stefan andersson
>
>
>
>
---
Unsubscribe? Mail Majordomo@(protected) with the following text in body:
unsubscribe xsi
|
|
|