Operation
３
２
Bring the T (Tele) indication on the zoom ring
to the setting dot, to obtain maximum magnifi-
cation.
This time, set the aperture to 5.6. Images can
not be gotten if the aperture is closed.
Then, adjust the focus ring.
３
Obtain appropriate magnification, brightness and depth of field using
the zoom ring and the aperture ring.
Hint
The gotten magnification becomes high and the field of view becomes
narrow when the working distance is short, contrarily becomes low and
wide when the working distance is long. On every working distance 10X
zoom is effective.
Regarding magnification
Reason why focus at high magnification first
The range in which it is in focus is wide (=depth of field is deep) at low
magnification, and narrow at high magnification.
Focusing first at high magnification side makes images in focus can be
gotten at the whole area of zooming.
１
Adjust the working distance, from the structur-
al top of the L-870 opposite the object to the
object, between 150 to 400mm.
The optical magnification varies with working
distance. Refer to the magnification table on
page 1.
Setting dot
T (Tele)
Aperture 5.6
Working distance
Object
