The scale of a tilted photograph of focal length f, taken from an altitude H, along the plate parallel through plumb point, is

- 1
  
  $\frac{f}{H s e c θ}$
- 2
  
  $\frac{f s e c θ}{H}$
- 3
  
  $\frac{f}{H}$
- 4
  
  $\frac{f}{H \cos \frac{1}{2} θ}$

Display Comments

Leave a comment

Login at first then you can submit comment. Click here to login.