Shooting; Adjusting The Flange Focal Length - Sony ExwaveHAD DXC-390 Instructions For Use Manual

Shooting

Adjusting the Flange Focal Length

This section explains how to adjust the flange focal length
(distance from the lens mounting plane to an object).
Adjustment method varies with the lens you use.
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.
Desired shooting
distance to the object
or about 3 m (10 feet)
2
Object, such as letters, fine
patterns, etc., on which you can
observe the focus condition
distinctly
32
(GB) Chapter 2 Operation
1, 3, 4, 5
6
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.