Praktica FX2 - Understanding Depth of Field

The distance scale
on the Praktica lenses is not of primary im¬
portance, focusing chiefly being performed
on the field lens. You may, of course, com¬
pare the distance on the scale.
This distance scale gains greater value in
connection with the parallel-running depth-
of-field scale which indicates the range of
sharpness pertaining to the various settings.
The extent of the dcpth-o£-ficld is shown,
for every diaphragm stop and distance
setting, on the depth-of-ficld scale. The part
of the image within the range of the two
identical diaphragm numbers indicating the
selected lens aperture on the depth-of-ficld
scale will always be sharp. The left-hand
numbers signify the depth of field in front,
and the right-hand numbers the depth of
field at the back of the focal plane.
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