# FIELD OF VIEW CALCULATION

4 replies to this topic

### #1 Petra Korner

Petra Korner

New

• Basic Members
• 2 posts
• Cinematographer

Posted 25 November 2009 - 06:49 PM

Could somebody please help me out – I know I should, but cannot remember the formula to calculate field of view… which I believe holds the answer to my dilemma.
This is what I’m faced with: a bird’s-eye-view shot looking straight down onto a “magical forest” set. Shooting Super35, aspect ratio 16x9. The camera on a crane at a height of approx. 8 meters from the ground, 5.75 meters from the set floor (set is elevated). Our set dimensions are 6 meters long x 8 meters wide. At this subject distance, what is the widest lens I can use without seeing off the set? It should be pretty simple… Thanks so much, guys!
• 0

### #2 Chris Keth

Chris Keth
• Sustaining Members
• 4427 posts
• 1st Assistant Camera
• Los Angeles

Posted 25 November 2009 - 07:53 PM

Could somebody please help me out – I know I should, but cannot remember the formula to calculate field of view… which I believe holds the answer to my dilemma.
This is what I’m faced with: a bird’s-eye-view shot looking straight down onto a “magical forest” set. Shooting Super35, aspect ratio 16x9. The camera on a crane at a height of approx. 8 meters from the ground, 5.75 meters from the set floor (set is elevated). Our set dimensions are 6 meters long x 8 meters wide. At this subject distance, what is the widest lens I can use without seeing off the set? It should be pretty simple… Thanks so much, guys!

An 18mm lens at that distance will let you see 7.67 x 4.31 meters. Next widest prime will have you seeing off the set, but a zoom could give you a tiny bit more.
• 0

### #3 David Mullen ASC

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

Posted 25 November 2009 - 08:43 PM

Here's a FOV calculator:
http://www.panavisio...calcFOVform.asp

Yes, it seems like an 18mm is about right.
• 0

### #4 Petra Korner

Petra Korner

New

• Basic Members
• 2 posts
• Cinematographer

Posted 25 November 2009 - 10:16 PM

Here's a FOV calculator:
http://www.panavisio...calcFOVform.asp

Yes, it seems like an 18mm is about right.

Perfect. Thank you, Chris and David!
• 0

### #5 Chris Keth

Chris Keth
• Sustaining Members
• 4427 posts
• 1st Assistant Camera
• Los Angeles

Posted 25 November 2009 - 11:20 PM

Perfect. Thank you, Chris and David!

You're very welcome, Petra!
• 0