ISSUE 1
15
KCMU000367
01/14/02
LENS INSTALLATION AND ADJUSTMENT, CONTINUED
Backfocus Adjustment
When a lens is mounted, adjustment of the backfocus may be required.
Adjust with the lens focus ring when the correct focus cannot be obtained.
After selecting, press SET to return to the MAIN MENU.
WITH A FIXED-FOCUS LENS
1.
Fully open the aperture and set the focus ring to
∞
(infinity).
If using an auto-iris lens, shoot a comparatively dark object so that
the aperture is fully open.
2.
Loosen the two backfocus screws with a hex wrench and turn the
lens mount to focus.
3.
After adjusting the backfocus, tighten the backfocus screw.
4.
Adjust iris for proper image quality.
WITH A VARIFOCAL LENS
1.
Fully open the aperture and set the lens to the maximum telephoto position, then turn the focus
ring to focus. If using an auto-iris lens, shoot a comparatively dark object so that the aperture is
fully open.
2.
Set the lens to its maximum wide-angle position.
3.
Loosen the two backfocus screws with a hex wrench and turn the lens mount to focus. After
adjusting the backfocus, tighten the backfocus screws.
4.
Repeat steps 1 through 3 until the difference between focusing position “Tele” and “Wide”
becomes smallest.
KC
4
200
M
N
Backfocus screw
