WKato@xxxxxxx moved upon the face of the 'Net and spake thusly:
> Assuming I have set the aperture of my wide angle lens to be in focus from 5
> feet to infinity, where should I focus on in the compostion to make sure I'm
> focusing at the hyperfocal distance?
If your lens is set so that the far limit of the depth-of-field is
infinity, then you *are* focused at the hyperfocal distance.
The hyperfocal distance is *defined* as the nearest focus distance at which
the zone of focus extends to infinity.
> Also assume that I am outdoors and have
> a clear view of the horizon. I don't want to look at any charts and find the
> distance numbers on the lens unreliable. If the top of the screen is on the
> horizon and the bottom of the screen is at the closest focusing point, can I
> just focus in the middle of the screen?
Dodgy. With practice you might be able to know the answer, but it's
not a reliable technique.
Focus at infinity (rack the lens in all the way). Use DOF preview to
find the nearest thing in "acceptable" focus. Re-focus on that
object. You're now hyperfocal.
cjb
--
Christopher Biggs -- chris@xxxxxxxxxxxxxx -- Stallion Technologies Australia.
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