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Posted by Larry, Darryl and Darryl on 05/29/06 04:45
I'm putting together a FOV chart for various formats and stared one for
the new Panasonic AG-HVX200.
As I'm sure many of you now, the chip is 1/3" (16:9), and the widest focal
length on the lens is 4.2 mm. In the manual Panasonic lists this as the
equivalent of a 32mm lens on a 35mm Camera (I presume they mean a still
camera which has a gate of 24mm*36mm -- or 1.5:1).
I created a spreadsheet using standard FOV calculating formulae, and
accurately determined FOV for 16mm, Super 16, 35mm MP, etc. But when I
entered the gate/focal-length details for the AG-HVX200, I got a FOV of
80+degrees -- dramatically different to what the Panasonic Manual says. I
assumed a problem with my trig/FOV calculations, but I plugged the
Aperture/Ratio/Focal length into 3D Studio Max and got exactly the same
results. I checked this with Horizontal, Vertical, and Diagonal FOV.
Any idea why this is? I don't have access to an HVX200, so I can't do a
hands-on investigation. I e-mailed Panasonic tech-support, but no reply.
It may seem like a minor detail, but for things like CGI, Camera matching
etc, it is very important.
TIA
--
--Larry, Darry, and Darryl
To reply directly remove "nothpam" from bexley@videotron.nothpam.ca
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