[Julio Ibanez] “Is there a significant quality loss in the PNG output side? These look pretty good to start, despite being H.264, and will need to be acceptable to broadcast once all is said and done.”
Quicktime with a PNG compressor is always mathematically lossless. Quicktime with Animation (and JPEG 2000, I believe) is mathematically lossless at 100%, and lossy at any other value. These codecs all support alpha channels.
Quicktime with Photo-JPEG is mathematically lossy at any quality setting, but may be “visually lossless” (I hate that term!) at very high settings. It has no alpha support.
What’s the next step in your production pipeline with these shots? If you’re going to an FCP edit, ProRes might be your best option. If Avid, DNxHD. Both these codecs are mathematically lossy but visually lossless, and they might be a big improvement for your workflow.
Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
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