Bernard said:DCI 4K is not an output format. It's meant to be cropped to UHD (16:9), or anamorphic, or 1.85, etc. No need for any of that here, these are consumer camcorders. 16:9 is what consumers have at home on their televisions (and other screens).
AFAIK DCI 4K is the 4K movie standard (see http://dcimovies.com/specification/DCI_DCSS_v12_with_errata_2012-1010.pdf, 4.3) which is "true" 4096x2160. Anamorphic is a different kind of recording/playing which needs special lenses.
Not all these are consumer camcorders, but little need of the higher specs when they are targeted to TV production which may not undergo long post-production cycles (i.e. news), with highly skilled technicians.
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