Difinitron.com - Virtual Tour

The Focus:
The VM-417 measures the voltages created by the CCD chip in the camera. The
lens captures the image, and as the image becomes shaper and in focus the video
output frequencies increase. As the image becomes focused the displayed number
gets larger, once you over focus or peak out the number begins to decrease.

The final measurement that the VM-417 is capable of is the focus "foc"
setting. While in this mode we are measuring the output frequencies of
the video signal. The VM-417 has the ability to read 0-900 while
in focus mode, the optimum level is the highest displayed value

Continue

To continue the demo simply click the MODE button on the VM-417 or the advance button below.