| When should you use hyperfocal focusing?
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| | shows that everything between just over 2
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| Well, sometimes when shooting a
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| | feet and 5 feet will be in focus.If the
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| landscape, you want everything sharp from
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| | lens is set to focus in infinity (the
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| the front to the back of the scene.
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| | infinity mark is over the central mark on
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| Setting a small aperture such as f/16, f
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| | the depth of field scale), then you only
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| 22 or even f/32 can help, but if you
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| | need to read off the distance value for
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| really want to maximize depth of field,
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| | the f-stop mark to the left of the
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| hyperfocal focusing is the technique you
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| | central depth of field scale as
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| need to use.To do this, you need a camera
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| | everything between it and infinity will
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| where you can switch to manual focusing
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| | be in focus. If you'd set your f-stop to
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| and a lens inscribed with a depth of
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| | f/5.6 on the 28mm lens, everything from
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| field scale (not all modern lenses have
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| | just over 10 feet to infinity would be in
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| these markings, especially zoom lenses).
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| | focus. If you'd selected f/16, it would
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| If you're not familiar with these kinds
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| | be everything from 5 feet to
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| of lens markings, here's a quick
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| | infinity.Hyperfocal FocusingHyperfocal
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| explanation:Lens Markings PrimerA typical
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| | focusing is based on the fact that depth
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| lens shows four sets of markings. At top
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| | of field typically extends 2/3 behind the
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| (looking from behind the camera) is the
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| | point focused on and 1/3 in front, but if
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| distance scale (on the lens' focus
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| | you focus on infinity, the depth of field
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| barrel) showing figures in feet and
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| | behind is completely wasted. You can make
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| meters (this also shows the infinity
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| | use of it if you refocus, putting the
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| position).Below that are a set of lines
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| | infinity mark (an "8" on its side) on the
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| beneath which the f-stops of the lens are
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| | focusing ring against the aperture set on
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| marked. This is the depth of field scale.
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| | the depth of field scale (this is known
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| For each f-stop, there are two
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| | as the hyperfocal point). If, for
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| equidistant marks, one to the left and
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| | example, you set a 28mm lens to f/11 and
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| one to the right of the central mark on
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| | focus on infinity, everything from about
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| the scale.The last set of figures shows
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| | 9 feet (2.5m) to infinity will be sharp.
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| the selected f-stop for the lens. These
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| | Align the infinity mark against the "11"
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| are on the lens aperture ring and, as you
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| | position to give hyperfocal focusing and
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| change the aperture, the selected f-stop
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| | the depth of field now extends from 4
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| under the central line on the depth of
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| | feet (1.2m) to infinity, which is
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| field scale will tell you what aperture
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| | essential if you want foreground interest
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| you've selected.To find out what part of
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| | to be pin-sharp. If you set your lens to
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| a scene is in focus is simply a matter of
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| | f/16 and rotate the focus barrel to place
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| reading the distance scale for the two
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| | the infinity mark over the "16" position,
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| marks for your selected f-stop on the
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| | then reading the scales shows that
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| depth of field scale. For example, let's
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| | everything between just under 3 feet to
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| say you've focused on something that's 3
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| | infinity will be sharp.The Hyperfocal
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| feet away. If your lens is set at f/2.8,
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| | distance is the that point above the
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| then reading the distance values at the
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| | central mark on the depth of field scale
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| two "2.8" marks on the lens shows that
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| | when the infinity mark has been put over
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| everything just shy of 3 feet to about
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| | the required f-stop mark on the depth of
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| 3.5 feet will be in focus (a little
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| | field scale. In the case of the 28mm lens
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| guesstimation is required in reading the
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| | at f/11, that's 9 feet / 2.5m. At f/16,
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| distances). This is fine for isolating
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| | the hyperfocal distance would be 5 feet.
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| your subject from everything else.If you
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| | Remember that the hyperfocal distance
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| close the lens down to f/11, then reading
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| | will be different for lenses of different
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| the distances for the two "11" marks
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| | focal length and different f-stops.
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