STOP DOWN / DEPTH-OF-FIELD PREVIEW
A visual depth-of-eld preview can be made by pressing the
STOP DOWN button (A).
Depth-of-eld is calculated as follows:
1 Focus the lens as required.
2 Make an exposure reading (auto or manual) and note the
aperture setting.
3 Find the markings on either side of the central index that
correspond to the chosen aperture.
4 From these two markings, read off on the required lens
distance scale the two corresponding distances.
5 The depth-of-eld (at that particular aperture and focus
setting) is the area included between these two distances.
Note!
Depth-of-eld is not absolute. Perception of it depends on
several factors and so it should be seen only as a rough guide.
3.21 STOP DOWN BUTTON
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Functions
A
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