How do I figure out what focal length and f stop?
Things I know : (or will know)
- distance to object
- depth of focus
- angle of view ( is this diagonal? )
- CCD or CMOS sensor size
- underwater
How do I determine what lens I need?
I think if I know the focal length and the depth of focus, then I figure the f stop. Then I can determine how much light I need.
Can anyone point me in the right direction?
Things I know : (or will know)
- distance to object
- depth of focus
- angle of view ( is this diagonal? )
- CCD or CMOS sensor size
- underwater
How do I determine what lens I need?
I think if I know the focal length and the depth of focus, then I figure the f stop. Then I can determine how much light I need.
Can anyone point me in the right direction?