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Sony XDCAM EX Pro Handhelds
Sony PMW-300, PXW-X200, PXW-X180 (back to EX3 & EX1) recording to SxS flash memory.


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Old January 28th, 2008, 11:44 PM   #1
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Slow Motion

I'm shooting 24p and want to slow the footage down to 50 percent not 40, so I set shutter at 48, but it seems strobe like anyone have a clue why?

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Mike
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Old January 28th, 2008, 11:47 PM   #2
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Did you set it to 48 on the S&Q menu?

How's your shutter set? Try setting it to angle mode at 180

Describe the strobing, or post a small quicktime, if you can.
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Old January 29th, 2008, 06:04 AM   #3
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Are you shooting indoors or outdoors? Fluorescent lights could cause that as well. It happens to me indoors if I shoot at 60fps. 50fps has no strobing.
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Old January 29th, 2008, 01:15 PM   #4
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shutter speed or frame rate? If you want to shoot 50% slow motion you need to shoot at 48 frames per second, not a 1/48 shutter speed. I'm not sure if 48 fps is an option on the EX.
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Old January 29th, 2008, 01:21 PM   #5
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48fps is an option on the EX1, but only at 720p. It's selected on the S&Q menu.
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Old January 29th, 2008, 05:47 PM   #6
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Sorry, just got home. I am shooting 48fps SQ mode, 720 24p, indoors. There were flourescent lights.

Mike
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Old January 29th, 2008, 05:53 PM   #7
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Fluorescents will flicker at 48 fps. at 180 (1/96 sec) shutter or no shutter (1/48 sec). Try 1/60 shutter.
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Old January 29th, 2008, 09:09 PM   #8
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Thanks Eric, I'll try it.

Mike
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Old January 30th, 2008, 07:34 AM   #9
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I wonder if Flicker Reduce menu setting would have impact. One might think that it's function is to reduce flicker when shooting at NTSC frame rates in PAL regions (50Hz electrical actually) and vice versa. What it's actually doing (since it's not changing the shutter speed) is a minor mystery to me. One might think it can help fluorescent light flicker.
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