Barco Orion 1080, Safety And Users Manual

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4.10 Zoom, focus and iris
These lens functions are manual (not motorized).
• Adjust zoom to achieve the desired image size (if the lens has a zoom-function).
• Then adjust focus to achieve a sharp image. If the image is not sharp all over the surface, please check the
surface flatness and whether the lens axis is perpendicular to the projection surface.
• Use the iris to adjust the contrast and focus depth of the image. Adjusting the iris will affect the brightness;
stopping the iris down increases contrast and image depth, but reduces brightness.
• The zoom, focus and, iris rings can be locked in position to prevent picture settings being accidentally
changed. Use a 1.5 mm Allen key to tighten the Z-lock screw on each ring to lock the movement until the
rings cannot be turned.
Figure 4-7. Positioning of Zoom, Focus and Iris rings (may vary on some lenses)
Zoom
Iris
Focus