DC control voltage input system lens (Set lens switch to DC.)
Flangeback adjustment
Adjust the flangeback if the focus cannot be adjusted after installing or replacing the lens, or at the wide and telephoto extremes of a zoom lens. Open the lens iris and adjust as described below.
1. Fixed focus lens
Set the lens focus ring to infinity and pickup an object at least 20 meters distant. Loosen the (two) lens mount setscrews and adjust the focus by turning the lens and lens mount ring. After adjusting, tighten the lens mount setscrews.
2.Zoom lens
1)Set the lens to maximum telephoto and pickup an object at least 3 meters distant. Loosen the (two) lens mount setscrews and adjust the focus by turning the lens and lens mount ring.
2)Set the lens to maximum wide angle and pickup the same object. While using care not to disturb the focus ring, adjust the focus by turning the lens and lens mount ring. Repeat these steps until focus is obtained at both the telephoto and wide angle settings. After adjusting, tighten the lens mount setscrews.
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