Export From Tiff to ProRes422 HQ colorshift

[sakalli]

hi,

just out of curiosity, anybody know what causes the color shift in this sample? the pic is a screendump of two sequences in quicktime. the above is a tiff sequence exported from RedAlert. It is darker and has fuller colors. and the lower is a ProRes422 export from the sequence above, done in final cut. what causes it? max 8-bit support for RGB in FCP?

any help appreciated.

EDIT: Posted actual tiffs of the sequences

 

[sakalli]

link to the sample here
http://www.montevideo.nl/isiclips/sample.tiff

original tiff from redalert
http://www.montevideo.nl/isiclips/A009_C003_071027_00967.tiff

ProRes Export
http://www.montevideo.nl/isiclips/sampleProRes422HQ.pct

 

[Simon Blackledge]

What setting is final cut set to gamma wise when importing still images?

Whats the bit depth of the tiff's ?

sounds like a gamma issue along with a downsample of the chroma.

S

 

[Graeme Nattress]

FCP will adjust gamma of incomming RGB data, and often remap it to 16-235 also - there's a setting in FCP6 that allows you to control how this works.

Graeme

 

[Simon Blackledge]

here ya go


http://docs.info.apple.com/article.html?artnum=93794

also FCP ... UserPrefs > Editing>Imported Still/Video Gamma

options for 1.8/2.20/2.22/source

S