Hyperfocal Chart

[Tom Deering <tmd@xxxxxxxxxxx>]

On 11/8/99, pennywise@xxxxxxxxxxxxxx wrote:
>I would really welcome a Sputnik depth of field chart

How's this?  :^)

A lens is only *precisely* focused at single distance.  To get a
whole range of distances, where focus is only "acceptably
sharp", we use a fudge factor called the Circle of Confusion.  On
the chart below, I specified a COC of 0.06 mm.


  Lens             f8                f11                f16
Setting       Near--Far          Near--Far          Near--Far
   4 ft      3.6 ft-- 4.5 ft    3.5 ft-- 4.7 ft    3.3 ft-- 5.1 ft
   5 ft      4.4 ft-- 5.7 ft    4.2 ft-- 6.1 ft    4.0 ft-- 6.8 ft
   6 ft      5.2 ft-- 7.1 ft    4.9 ft-- 7.6 ft    4.6 ft-- 8.7 ft
   8 ft      6.6 ft--10.1 ft    6.2 ft--11.2 ft    5.6 ft--13.7 ft
  10 ft      7.9 ft--13.5 ft    7.4 ft--15.6 ft    6.6 ft--20.8 ft
  12 ft      9.1 ft--17.4 ft    8.4 ft--21.0 ft    7.4 ft--31.9 ft
  15 ft     10.8 ft--24.6 ft    9.8 ft--32.4 ft    8.4 ft--68.3 ft
  20 ft     13.2 ft--41.7 ft   11.7 ft--70.2 ft    9.8 ft--infinit
  50 ft     21.7 ft--infinit   17.9 ft--infinit   13.9 ft--infinit
100 ft     27.8 ft--infinit   21.9 ft--infinit   16.1 ft--infinit
 
     Hyperfocal: 38.4 ft            28.0 ft            19.2 ft

Cheers,

Tom