Controls for Creating Effective Images on Film or Digitally 307
Depth-of-Field on the Preview Screen of Digital Sensor Units
Everything that has been said above for focusing screens applies to preview screens on the
Hasselblad sensor units and to an even higher degree because the images on these screens
are usually viewed without daylight completely shielded from the screen which viewfi nders
do on focusing screens.
Hyperfocal Distance
Hyperfocal distance is often referred to as the distance setting that produces the maximum
depth-of-fi eld at a specifi c aperture. Although this is correct, I suggest looking at Hyperfocal
distance as the distance setting that produces depth-of-fi eld to infi nity at the set aperture.
Because Hasselblad lenses have depth-of-fi eld scales, there is no need for hyperfocal distance
charts. Simply set the distance ring so that the infi nity mark is opposite the corresponding
aperture on the depth-of-fi eld scale on the right. The hyperfocal distance, if you want to know
it, is the distance opposite the index. You will also fi nd that the depth-of-fi eld extends on the
other side to half the hyperfocal distance; for example, to 8 feet (2.6 m) if the hyperfocal dis-
tance is 16 feet (5.2 m) (see Figure 16-11).
Figure 16-11 Hyperfocal distance. A lens is set to the hyperfocal distance when the infi nity mark
is placed opposite the set aperture on the depth-of-fi eld scale: at f/11 (a), f/4.5 (b), and f/22
(c). The depth-of-fi eld then extends from infi nity down to half the distance that is opposite
the index (to 10 feet at f/4.5, to 2 feet at f/22, and to 4 feet at f/11).
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