Sony DSR PD170 Operating Instructions - Page 44
Shooting with manual adjustment, Adjusting the iris, To return to automatic iris mode
UPC - 027242639850
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Shooting with manual adjustment Adjusting the iris Adjust the iris manually depending on the depth of field. (1) Set the AUTO LOCK selector to the center (auto lock release) position while the camcorder is in standby, recording, or memory mode. (2) Press IRIS. The iris indicator appears on the LCD screen or in the viewfinder. (3) Turn the IRIS dial to adjust the iris. As you turn the dial, the F value changes as follows: F1.6 y ... y F11 y CLOSE For a smaller aperture, select a higher value. 2 •IRIS F2.8 1 AUTO LOCK HOLD 3 To return to automatic iris mode Set the AUTO LOCK selector to AUTO LOCK or press IRIS. The iris indicator disappears from the LCD or viewfinder screen. About the depth of field The depth of field is the in-focus range, measured from the distance behind a subject to the distance in front. The depth of field can vary with the iris (F value) and the focal length. Lowering the F value (large iris) reduces the depth of field. Raising the F value (small iris) provides a larger depth of field. Zooming in telephoto position offers a smaller depth of field while the depth of field in the wide-angle position is greater. The depth of field Shallow Iris Near open (Low F value) Zoom Telephoto (T) Deep Near close (High F value) Wide (W) 44