68VQT1T90Shutter Speed:Adjust it when recording fast-moving subjects.Iris:Adjust it when the screen is too bright or too dark.Set the AUTO/MANUAL switch to MANUAL. ( 58)1 Press the camera function buttonand select [SHUTTER SPEED] or[IRIS] by rotating the ring. ( 64)2 Enter the selection by pressingthe camera function button.3 Adjust by rotating the ring.Shutter speed:1/50 to 1/8000If [AUTO SLOW SHTR] is set to [ON], theshutter speed will be set between 1/25 and1/8000.The shutter speed closer to 1/8000 is faster.! Iris/Gain value:CLOSE (F16 to F2.0) OPEN (0dB to18dB)Value closer to [CLOSE] darken the image.Value closer to [18dB] brighten the image.When the iris value is adjusted to brighter than[OPEN], it changes to the gain value.4 Enter the selection by pressingthe camera function button.Select [RETURN] with the ring, and press thecamera function button again to complete thesettings.Set the AUTO/MANUAL switch to AUTO torestore to automatic adjustment.When setting both the shutter speed and theiris/gain value, set the shutter speed and thenset the iris/gain value.Manual shutter speed adjustmentIf you increase the shutter speed manually, thenoise on the screen may increase.You may see a band of light around the objectthat is shining very bright, or having very highreflection.During normal playback, image movementmay not look smooth.Colour or brightness of the image may change,or you may see horizontal bars in the imagewhen the object is recorded in extremely brightplace or under fluorescent light, mercury lightor sodium light, etc. In this case, record in automode or set the shutter speed to 1/100 inareas where the power supply frequency is50 Hz, or 1/125 in areas of 60 Hz.Manual iris/gain adjustmentLuminance level and histogram are displayedduring the iris adjustment. It is also possiblenot to display them. ( 62)If the gain value is increased, the noise on thescreen increases.Depending on the zoom magnification, thereare iris values that are not displayed.Manual shutter speed/iris adjustmentCAM FUNC