Compensating for Flicker Factor

Ohm wrote on 3/14/2005, 5:51 PM

I am making a training video for a testing process for electronics technicians. The techs are testing at board and component level. The test equipment are PC monitor, Digital Multimeter, O'scope, Frequency Counter, Digital Stopwatch, and displays on the unit under test. I'll be using split screen inorder to show simultaneous events.

My problem is that I get an irritating strobing or flicker effect from all of the digital displays. And, they all flicker at different rates due to varying clock speeds. The PC monitor is the worst.

Is there any way that I can compensate for this, and at least minimize, if not eliminate, the flicker factor? I can live with some flickering, but I would like to get rid of that horizontal band on the PC monitor all together.

Using a Sony Handycam DCR TVR350 (NTSC)

Thanks for your advice.

Comments

Liam_Vegas wrote on 3/14/2005, 6:13 PM

First.... use an LCD monitor rather than a CRT monitor for the PC. You get no problems with flicker on LCD's. The other displays may be a little more problematic... but basically you will need to reduce the shutter speed of the camera to try to reduce the flickering on the other devices.

logiquem wrote on 3/15/2005, 10:59 AM

You can get almost completly rid of the Flicker Factor with a cam like a Pana DVX100. It has a fine shutter setting to avoid this sampling artefact.

Ohm wrote on 3/15/2005, 9:05 PM

Okay, thanks a lot folks. I appreciate your help.