[MacDV] Re: flicker rate & stabilizer

[Colin McDonald]

On Saturday, Jan 10, 2004, at 19:11 Europe/London, Mark M. Florida 
wrote:

> On Jan 10, 2004, at 1:01 PM, Brett Koonce wrote:
>
>> It's an old film trick, synching gates.  Nowadays, there's an easier 
>> trick: just find a LCD monitor to film.
>
> Or use 60 Hz -- not very good to look at first-hand, but should 
> transfer well to video (NTSC, right?).  If your shooting PAL, maybe 75 
> Hz?  Or you could adjust the frame rate of your camera to as close of 
> an even multiple of your scan rate as possible -- like set your 
> computer to 60 Hz and your camera to 1/30 sec.

I remember watching a television shoot in a set with a prominent 
computer monitor. The camera operators synced their cameras together 
and then varied the sync signal a wee bit up and down until the flicker 
and lines disappeared from the image of the monitor.

Just because the frame rate equalled the flicker rate (unlikely anyway) 
would not necessarily give a clean image - you might just as easily get 
a fixed black line or other lines.  There's more to it that that.

There must be someone on the list with studio experience of this kind 
of issue.

Colin McDonald