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shooting PAL at 60hz


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#1 Joseph Zizzo

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Posted 15 January 2007 - 02:12 PM

hi,

there is probably an obvious answer to this, but what is the best way to shoot HDV (like the sony Z1) in PAL mode under 60hz non-flicker-free lighting, for an english production shooting in new york? the producers want to shoot sync playback for a music video at 25 fps on the Z1, and the locations have a lot of fluoros and sodium vapors, etc....

thanks.
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#2 Brian Drysdale

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Posted 15 January 2007 - 04:12 PM

Best way is to use a shutter speed that is a multiple of 1/60th, eg 1/120th of second.
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#3 Joseph Zizzo

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Posted 17 January 2007 - 12:15 AM

isn't 1/60 ntsc? i was told by the rental house tech support guy that in HDV mode, the shutter speed needs to be at 1/50 (50i) (or multiples) to be recording in PAL.
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#4 Brian Drysdale

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Posted 17 January 2007 - 06:36 AM

Don't confuse the frame rate with the shutter speed. The interlace PAL cameras traditionally have 1/60th shutter speeds rather than 1/50th as a option (commonly the shutter is switched off shooting interlace), although, progressive frame cameras (like film cameras) do normally shoot at a shutter of 1/50th at 25 fps. The shutter settings for the 25p version of the Sony HDW 750 camera are 1/33, 1/50, 1/60, 1/100.... , so aren't limited to multiples of 1/50th.

59.94i cameras have the 1/100th shutter option rather than the 1/60th found on 50i cameras.

Also, the clear scan allows you to set the the shutter speed so that you don't get flickering from computer screens. Once set, these shutter speeds can way off 1/50th.
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#5 Stuart Brereton

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Posted 17 January 2007 - 06:48 AM

You need to change your display name to your real name. You can do this in 'My controls'.
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#6 Joseph Zizzo

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Posted 17 January 2007 - 08:03 AM

oh i see, thank you. yes, i think the Z1 can be set to 1/60 in 50i HDV mode. it doesn't have clear scan, though.... too bad.
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#7 Stuart Brereton

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Posted 17 January 2007 - 09:09 AM

You still need to change your Display Name to your real name. It's a requirement of membership.
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