It is true, some LCDs do BLINK
Check the file below. Somes LCDs do blink, indeed.
To the left - brand new Fujitsu-Siemens P20-2 (20.1 inch). To the right, my good old BenQ FP767 (17 inch).
After working for 6 hours behind the new Fujitsu, I got a very bad headache. To investigate this I set the shutter speed on my FZ30 to 1/125 and after half-pressing the shutter button, indeed the Fujitsu monitor started blinking while the BenQ showed no such effect at all. (Both monitors were fed from the same ATI graphics card at the same refresh rate.)
So I used the mobile phone to capture a video footage of what was happening on FZ30's screen. Watch for yourself. You need QuickTime to watch the file. I recommend to view the file at 200% magnification.
I suspect that Fujitsu blinks at 100 Hz, twice the frequency of the European electricity network.
Needless to say, I am totally upset, having to return the monitor.
Hint: Before buying any LCD monitor, take your Panasonic camera with you and watch what happens at 1/125.
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