and a good opportunity for math class 101
(much more appreciated on the FCP-L, but that's another story...)
For 24 with 50 Hz light:
24 fps / 50 hz * 360 (degrees) = 172.8
That makes for 23.976: 172.6272 (no idea if that's an option...)
For shooting 24 in the US:
24 fps / 60 hz * 360 (degrees) = 144 degrees
But the bottom line, set your exposure time to a multiple of the light
frequency and you should be safe...
(and there is logic in that...)
(disclaimer, i'm not a DOP, but just love to understand the way things
work...)
Bouke
VideoToolShed
van Oldenbarneveltstraat 33
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For large files:
http://dropbox.yousendit.com/BoukeVahl998172
----- Original Message -----
From: "David Dodson" <davidadodson@sbcglobal.net>
To: <Avid-L2@yahoogroups.com>
Sent: Wednesday, August 17, 2011 11:04 AM
Subject: Re: [Avid-L2] Re: 24p/25p?
>
>
> Ahhhhhh... That's hot information! Thanks, Job!
>
> David
>
>
> On Aug 17, 2011, at 12:53 PM, Job ter Burg (L2B) wrote:
>
>> Just asked a DoP buddy. Cameras have a shutter setting for 172.8 degrees,
>> which is used on 24fps film shoots, to compensate for practicals and
>> non-flicker-free lights. Effectively, the shutter speed then becomes
>> 1/48th rather than 1/24th, he said.
>>
>> On 17 aug 2011, at 08:02, David Dodson wrote:
>>
>> >
>> > And if you have practicals on set? For example, we start shooting a
>> > feature next week here in Moscow. We're shooting RED cameras, probably
>> > at 24fps, and will have plenty of practical lights on set. So are we
>> > better off going 24fps, 23.976fps, or 25fps? And this is for theatrical
>> > distribution, both in 35mm and DCP.
>> >
>> > David
>>
>>
>
> David Dodson
> davidadodson@sbcglobal.net
>
>
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Search the offical complete Avid-L archives at:
> http://archives.bengrosser.com/avid/
>
> If you want to donate to Red Cross quake relief, you can do so through
> your cell phone. Text redcross to 90999 to make a $10 donation. It will be
> on your next cell bill.Yahoo! Groups Links
>
>
>
If you want to donate to Red Cross quake relief, you can do so through your cell phone. Text redcross to 90999 to make a $10 donation. It will be on your next cell bill.
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