MISCELLANEOUS
This section explains miscellaneous
information.
• Lens compatibility
• Usable optional Speedlights
• Optional accessories
• Camera care
• Notes on batteries
• Troubleshooting
• Glossary
• Specifications
• Index
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About Depth of F
About Depth of F
ield
ield
Basics of the relationship between focus and depth of field are
explained in this section.
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Depth of field
When focusing, depth of field should be considered. Depth of field is the zone
of sharpest focus in front of and behind the subject on which the lens is
focused. It varies according to shooting distance, focal length and, above all,
aperture. Smaller apertures (larger f-numbers) will produce a deeper depth of
field where the background and foreground become sharper; larger apertures
(smaller f-numbers) will produce a shallower depth of field where the
background becomes blurred. Similarly, shorter shooting distance or longer
focal length will produce a shallower depth of field, and longer shooting
distance or shorter focal length will produce a deeper depth of field. Note that
depth of field tends to be shallower in front of and deeper behind the subject
in focus.
Large aperture f/2.8
Small aperture f/32
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