depth of field, f stops => feet/meters possible


sglion

New Member
Dec 11, 2009
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Hi,

Is it possible to know/calculate what will be in focus given the f stops

Like if I set f 3.5, what distance/depth will be in focus?
If its a zoom lens, how does it affect?

Thanks
 

turtl3fly, Thanks.

Exactly what I was looking for.
 

If its a zoom lens, how does it affect?
Then the calculated depth of field is only valid for one particular focal length. The moment you change the focal length (vulgo: zoom in / zoom out) the value for DOF changes.