Jump to content

Welcome to NikonForums.com
Register now to gain access to all of our features. Once registered and logged in, you will be able to create topics, post replies to existing threads, give reputation to your fellow members, get your own private messenger, post status updates, manage your profile and so much more. If you already have an account, login here - otherwise create an account for free today!
Photo

How far away was this feral hog from me?


  • Please log in to reply
2 replies to this topic

#1
dragon49

dragon49

    Senior Member

  • Forum Member
  • PipPipPipPipPip
  • 119 posts
  • Country Flag

Can somebody less mathematically challenged than I please work all of this out, so I can best tell my story. :)

Here is the data:

Nikon Coolpix P1000

Focal length 126 mm

35mm focal length 700

Let's assume my best guess that this individual was 4 feet wide and 2.5 feet tall.  Given how the animal is framed in the photo, how far away was it from me?

VbjO3p0.jpg



#2
Merco_61

Merco_61

    Nikonian

  • Premium Member
  • PipPipPipPipPipPipPipPip
  • 10,632 posts
  • Country Flag
  • LocationUppsala, Sweden

Site Supporter

The diagonal angle of view is about 3.5˚ at 700 mm.
Your feral hog takes up roughly 1/4 of the framed area. Let’s say that the dimensions in the photo is around 8x5’4”. This means that the diagonal is 9’7”.

Some simple trig gives a distance of around 50 yards or so. Given how approximate the inputs are, let’s say between 45 and 55 yards.



#3
dragon49

dragon49

    Senior Member

  • Forum Member
  • PipPipPipPipPip
  • 119 posts
  • Country Flag

The diagonal angle of view is about 3.5˚ at 700 mm.
Your feral hog takes up roughly 1/4 of the framed area. Let’s say that the dimensions in the photo is around 8x5’4”. This means that the diagonal is 9’7”.

Some simple trig gives a distance of around 50 yards or so. Given how approximate the inputs are, let’s say between 45 and 55 yards.

Many thanks!

Trigonometry is not simple for me. :)