NewStuff wrote:
mad-dan wrote:
it is cos of the speed the flash fires at and the refresh rate of your screens
Indeed. Most PC monitors refresh at 60Hz. The timing of the Shutter being open on an LCD will gernerally have a full lit, or unlit screen. On an old CRT, it used progressive scanlines, and You could catch it partway through the scan.
I think... I'm tired, and my brain hurts.
Test the theory - 1/60 second shutter speed - take a load and roughtly half should come out black....i think.....
Hmmmm... whats the duty cycle......
hmm....hang on its not a scan rate like CRT, its a refresh rate.
SO it doesn't go 'off' at all (unlike crt), it just refreshes.....ohh i dunno - its too late!!
One to fall to sleep with!