[Tig] D5 Compression

Mark Quod markq at primepost.com
Thu Apr 3 22:45:06 BST 2008

Recently I noticed some rather nasty looking compression artifacts on a 
D5 tape.  The compression appeared as large digital blocks in the 
darkest parts of the image. One shot that looked particularly bad was 
of a star field.  Around some of the more faint stars blocking was 
apparent.  I had to turn the brightness up a bit on the monitor to see 
it but it was definitely there.  The source was an HDCAMSR 4:4:4 which 
looked clean.  I know the compression rate is lower in HDCAMSR but I 
was surprised at how bad the D5 looked.  Has anyone else noticed this?


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