As you push the switch left or right (but not up), you are manually adjusting the electronic
gain (light amplification) of the internal computer circuit.
Notice the following as you increase gain (push to the right):
1. At very high gain settings, the image gets “noisier”.
Notice a “snowy” image at high gain settings.
2. As you increase the gain quickly, you may notice a momentary very bright image
which quickly darkens itself back to normal intensity. This behavior is the device
sensing that the image is overexposed, and automatically reducing internal gain
and/or exposure to compensate. In an actual dark environment, iGen would not
throttle back the gain in this manner.
If the “overexposed image” message appears, it is prompting you to reduce
gain. If this message disappears automatically, then the internal processor was
able to automatically reduce the gain or exposure.
With the lens cap on, notice that rotating the objective lens (large lens on front of iGen) has
little effect on the focus of the image. The pin-hole on the lens cap lets in only a narrow
beam of light which requires little mechanical focusing to align. If the scene is out of focus,
you may need to rotate the lens many degrees to achieve a small amount of optical focusing.
This characteristic will not be apparent when using the iGen with the lens cap removed.
Press the
Infrared Button
several times.
Notice that it has 3 different modes: AUTOMATIC, OFF and MAXIMUM
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Image Review
While reviewing images,
Press Up
on the triple action switch to display the menu.
Menu Choices are:
• CONTINUE to continue viewing saved images.
• EXIT to return to viewing. Notice that the image capture mode is deactivated
after entering the Review Mode; “CAPTURE” is no longer displayed.
If you desire to exit Review Mode and return directly to Capture Mode, press-
and-hold the capture button.
• DELETE to permanently delete the currently displayed image from the memory
card. There is no “delete all images” function; if a mass delete of many saved
images is desired, deletion with the memory card connected to a computer may
be quicker than deleting each image individually with the iGen.
Characteristics and Limitations of Night Vision Photographs
Night Vision images are characteristically less detailed than day-time images, as
there is less light available. The iGen-LE is a black-and-white camera system, so all
saved images will be black-and-white. Nighttime is almost completely devoid of
colors, so a color system would be of little practical use.
