Digital Camera User Manual

26 C2946M-D (6/08)
6. Varifocal lens only:
a. Set the varifocal to wide (W) and the lens focal length to far (∞).
b. Adjust the back focus:
(1) Use a 1.5-mm Allen wrench to loosen the back focus locking screw.
(2) Turn the lens until the image is focused.
(3) Tighten the back focus locking screw clockwise.
(Back focus is a coarse adjustment. You will make the fine focus adjustment in steps c and d.)
c. Move the varifocal locking screw up or down to set the field of view.
d. Adjust the lens focus to achieve the best fine focus.
e. Repeat steps c and d until the focus is correct.
7. Manual iris only: Adjust the iris for the best picture quality. The largest aperture gives the best light sensitivity; the smallest aperture
gives the greatest depth of field.
8. Tighten all lens locking screws.
9. Auto iris only: Remove the ND filter.
10. If necessary, reset the AGC setting to its previous value.
a. Display the FUNCTION SETTINGS menu.
b. Change AGC to OFF, LOW, or HIGH.
c. Select EXIT to save the AGC setting.
11. Auto iris only: Perform the auto iris lens adjustment procedure (refer to DC Iris Level on page 20).
WARNING: Do not overtighten the back focus locking screw because you may damage the camera.
WARNING: When tightening the lens locking screws, do not overtighten or force any screw.