Jump to content


Photo

Complex Calculation


  • Please log in to reply
5 replies to this topic

#1 James Rydings

James Rydings
  • Basic Members
  • PipPip
  • 38 posts
  • 1st Assistant Camera
  • Los Angeles, California

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
  • 0

#2 David Mullen ASC

David Mullen ASC
  • Sustaining Members
  • 20074 posts
  • Cinematographer
  • Los Angeles

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.
  • 0

#3 James Rydings

James Rydings
  • Basic Members
  • PipPip
  • 38 posts
  • 1st Assistant Camera
  • Los Angeles, California

Posted 14 December 2006 - 07:20 PM

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

James
  • 0

#4 Igor Trajkovski

Igor Trajkovski
  • Basic Members
  • PipPipPipPip
  • 311 posts
  • Other
  • Macedonia

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
  • 0

#5 Daniel Madsen

Daniel Madsen
  • Basic Members
  • PipPipPip
  • 201 posts
  • Student
  • Boston

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
  • 0

#6 Laurent Andrieux

Laurent Andrieux
  • Sustaining Members
  • 1527 posts
  • Cinematographer
  • France

Posted 14 December 2006 - 08:22 PM

Distance from camera to object X image size = Object size X focal length
  • 0


Broadcast Solutions Inc

Wooden Camera

Paralinx LLC

FJS International, LLC

Ritter Battery

Tai Audio

New Pro Video - New and Used Equipment

Glidecam

Rig Wheels Passport

rebotnix Technologies

Aerial Filmworks

Willys Widgets

CineLab

CineTape

Metropolis Post

The Slider

Abel Cine

Gamma Ray Digital Inc

Visual Products

Technodolly

Media Blackout - Custom Cables and AKS

The Slider

Aerial Filmworks

New Pro Video - New and Used Equipment

Abel Cine

Rig Wheels Passport

CineTape

Glidecam

FJS International, LLC

CineLab

Gamma Ray Digital Inc

rebotnix Technologies

Technodolly

Ritter Battery

Broadcast Solutions Inc

Wooden Camera

Metropolis Post

Visual Products

Paralinx LLC

Willys Widgets

Media Blackout - Custom Cables and AKS

Tai Audio