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24fps loses light

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Gerret Warner
24fps loses light
on Apr 16, 2008 at 4:19:51 pm

We've been shooting in both DV50 and 720PN, and recently had to shoot a scene in 30 fps to match a legacy project. When we did, we were surprised to notice that it appear you lose about a half stop when you go from 30 to 24, in DVCPro, DV50 or 720. Anyone know why?


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Noah Kadner
Re: 24fps loses light
on Apr 16, 2008 at 5:10:02 pm

Are you sure you're not just swapping into a different scene file or shutter setting? Of course there's a difference in how 30 fps will see a scene compared to how 24 fps will see it- they are vastly different taking formats.

Noah

My FCP Blog. Unlock the secrets of the DVX100, HVX200 and Apple Color. Now featuring the Sony EX1 Guidebook
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Richard Herd
Re: 24fps loses light
on Apr 16, 2008 at 9:04:31 pm

Frame Rate * Shutter Angle = Shutter
1/24 * 1/2 = 1/48
1/30 * 1/2 = 1/60

How many foot candles did you light to?



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