Filter
Top Products
34 (GB) Chapter 2 Operation
Chapter 2
When you use a zoom lens not equipped with
the flange focal length adjustment function
Adjust the flange focal length using the FLANGE BACK
(flange focal length) adjustment ring on the camera.
1 Set the iris fully open if the lens is equipped with the
iris ring.
If you use the auto iris lens, illuminate the object
appropriately so that the iris is open.
2 Point the camera to an object at the desired shooting
distance or about 3 m (10 feet) away.
3 Turn the zoom ring to TELE (telephoto) as far as it
goes.
4 Adjust the focus on the object used in step 2 by turning
the focus lens on the lens.
5 Turn the zoom ring to WIDE (wide-angle) as far as it
goes.
6 Adjust the focus on the object used in step 2 by turning
the FLANGE BACK (flange focal length) adjustment
ring on the camera.
Do not turn the focus ring on the lens during
adjustment.
7 Repeat steps 3 to 6 until you achieve sharp focus both
in the telephoto and wide-angle positions.
Now the flange focal length adjustment is completed.
You do not need to readjust the flange focal length unless
you replace the lens.
Desired shooting
distance to the object
or about 3 m (10 feet)
Object, such as letters, fine
patterns, etc., on which you
can observe the focus
condition distinctly
1, 3, 4, 5
2
6
Shooting