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Complex Calculation


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#1 James Rydings

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Posted 14 December 2006 - 06:35 PM

Hi,
Do you know of any software, or calculation I can use to work out the height and width of an object needed to fill the frame?
I want to be able to work out for exampls, if I have a 50mm lense shooting on 35mm and the camera is 30ft away from the object, then what height and width would the object need to be to just fill the entire frame.
I want to be able to work this out with different lenses, different formats, and different distances from the object.

I am sorry if this is a little complicated. Let me know if you dont understand me.

Thanks,
James
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#2 David Mullen ASC

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Posted 14 December 2006 - 07:07 PM

There are field of view (FOV) charts for lenses, like in the ASC Manual.

And there are some online calculators for that.
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#3 James Rydings

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Posted 14 December 2006 - 07:20 PM

Thanks for your reply. I actually just realised that there is a FOV calculator in pCAM.

James
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#4 Igor Trajkovski

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Posted 14 December 2006 - 07:59 PM

Hi

Try FILM - a small windows software.

http://www.cinematog.../Files/film.zip

From CML.

It has the exact thing that you need.
On the main menu select "Lenses".
Voila.

More good downloadables from CML @:
CML - Software & Files section


Best


Igor Trajjkovski
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#5 Daniel Madsen

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Posted 14 December 2006 - 08:20 PM

In panavision's CD catalogue there is a very useful calculator in the form of an excel file. I can send it to anyone that's interested.


Dan
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#6 Laurent Andrieux

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Posted 14 December 2006 - 08:22 PM

Distance from camera to object X image size = Object size X focal length
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