[Tig] [Fwd: 720p Tape to Tape color correction]

Martinelli, Adolfo amartinelli at ringsidecreative.com
Tue Oct 9 19:15:32 PDT 2007


Well thanks for clarifying that, Jim. You're absolutely right. It  
would make for some gnarley frames when it got pieced back together.

On Oct 9, 2007, at 7:12 PM, "James Deluca" <James_Deluca at crestdigital.com 
 > wrote:

> Well Excuuuuuusssseee Meeeeeee!
> You cannot go from 60 frames per second to 30 fra,es/60 fields per
> second without throwing away half of your originally captured frames.
> Those 60 field per second are NOT going to come from using only half  
> of
> the lines from each of those original 60 frames, but from taking one  
> of
> those frames, upconverting to 1080 and using half of the lines in
> 1080/F1 and the other half for 1080/F2. Yes you are discarding half of
> the temporal info. If there is a conversion that uses separate 720p
> frames converted to 1920x540 for each field, I must have missed it.  
> Tat
> would make for some ugly 2 field still-frames. Please advise.
> Jim DeLuca
>
> -----Original Message-----
> From: Martinelli, Adolfo [mailto:amartinelli at ringsidecreative.com]
> Sent: Monday, October 08, 2007 7:07 PM
> To: James Deluca
> Cc: Rob Lingelbach; tig at colorist.org
> Subject: Re: [Tig] [Fwd: 720p Tape to Tape color correction]
>
> Hi Jim,
>
> I don't think you'll be throwing any 'Frames' away - in both 60P and
> 60i, you still get 60 images per second. The loss would be more  
> spatial
> than temporal as the vertical resolution of the 1080i images would be
> reduced to 540(x1920) versus 720P's 720(x1024). So, granted, we can
> agree that there would some degradation to the vertical resolution of
> the image, but it could be a reasonable solution (depending on the
> project/budget/schedule I suppose) especially since I have never had
> much luck with 720P on our daVinci myself.
>
> Maybe someone who has jumped through this 720/60P hoop with their 2K  
> can
> chime in...
>
> Adolfo Martinelli
>
> On Oct 8, 2007, at 9:26 PM, James Deluca wrote:
>
>> Hmmm! Throw away half the frames just so the TC will work. Naaaah!!
>> Jim DeLuca
>>
>> -----Original Message-----
>> From: tig-bounces at tig.colorist.org On Behalf Of Martinelli, Adolfo
>> Sent: Saturday, October 06, 2007 4:05 PM    To: Rob Lingelbach Cc:
>> tig at colorist.org
>> Subject: Re: [Tig] [Fwd: 720p Tape to Tape color correction]
>>
>> Can you bump it up to 1080i and then scene detect it? OR, can you
>> convert the EDL from 30 f1/f2 to 60?
>>
>> Adolfo Martinelli
>> Colorist
>> Ringside Creative
>>
>> On Oct 6, 2007, at 1:20 PM, Jim Mann wrote:
>>> Nadeem wrote: I am in the middle of a feature going tape to tape  
>>> from
>>> D5 720p 59.94. The DaVinci 2K will not let me set marks on field 2  
>>> in
>
>>> manual or auto detect. Any suggestions?
>>> Nadeem is your TC 24 or 30? Was it shot 24p then output from the
>>> camera with a 2:3 pull down or (as jeff suggests) a 2:3:3:2 Advanced
>>> pulldown.
>>> Maybe?
>>> But all that aside, there is a f1/f2 button on the daVinci 2K
>>> keyboard
>>
>>> panel. Green diamond + F1/F2 changes all events to F1; Blue Diamond
>>> + F1/F2
>>> changes all events to F2. Hitting just F1/F2 will toggle the field
>>> for
>>
>>> just the event your currently park on. All this is denoted by the TC
>>> display in the texta lista with a period or a semi-colon.
>>> Good Luck,
>>> Jim Mann (Former daVinci trainer)
>




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