online dvcpro50 vs dv clips

[Donatello]

DV has 4:1:1 color space .. DVCpro 50 has 4:2:2 color space ( 2x ) ..
but it all comes down to the project .. your dv image will improve if you use a camera with 2/3″ CCD’s .. chroma keying, rotoscoping i smuch easier working in 4:2:2 color space … DVCpro50 isn’t the only 4:2:2 format …

look at photo’s at link – DVCpro is probably between digibeta and digital S … dsr 130 is either 1/2 or 2/3 chip ?
https://www.pixelmonger.com/hotgear.html

[Noah Kadner]

Definitely a way better format the DV- you get the increased color fidelity as well as half the amount of Compression per frame. For my money DVCPRO50 is the ideal mixture of quality vs. cost vs. file size. It’s the best standard definition can be and not be shooting uncompressed nor be super expensive Digibeta.

Noah

[Toke]

It’s not half the compression.
Dv (4:2:0 or 4:1:1) has 12b/px, so datarate is 124Mbps and with 25Mbps it has compression rate of 5:1.
Dvcpro (4:2:2) has 16b/px, so datarate is 166Mbps and with 50Mbps it has compression rate of 3.3:1.
So dvcpro has 33% lighter compression than dv.

[Rob Katz]

so folks, i understand the math as to why dvcpro50 is better but can anyone point me to some links that do a side-by-side comparison of the 50mbps and the 25mbps footage so i can “see” the difference?

as always, thanks in advance for sharing

be well

rob katz
harvest film

[Noah Kadner]

Nothing gets by you.

[Barry Green]

Try Eleventy’s comparison here:
https://www.eleventy.org/dv-en/

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[Toke]

Sorry about that, if I’m picking too much.
I’ve beed sick and in bed for 2 days so I’ve had too much time for surfing around…
I just thought those numbers might clarify the situation to somebody.

[Graeme Nattress]

Colour Space is something like REC601 or 709, ie the gamut of displayable colours. Chroma sampling is denoted by the 4:2:2 etc. notation and tells you what the resolution of the chroma components is compared to the resolution of the luma. Two different things. And DV50 is quite nice indeed for an SD format…. If you look at example of Noah’s movie on the Panasonic demo disc, it’s fantastic.

Graeme

– http://www.nattress.com – Film Effects and Standards Conversion for FCP

[Rob Katz]

barry-

that site demonstarted a pretty obvious difference between dvcpro50 and dvcpro25.

i imagine u and others with more experience than i would immediately “see” the difference between dvcpro25 and dvcpro50 in a piece of footage

i wonder if i would “see” that difference at 30fps rather than a static still image?.

any sites with a moving footage comparison?

as always, thank u again and gain for sharing your expereinces

be well

rob katz
harvest film company

[Toke]

With natural footage and progressive frames, I’d say that difference between 4:2:0 and 4:2:2 is very small.
With chroma keying and graphics (without anti-aliasing = ugly) etc. there is a difference.
With interlaced picture (which should have been history by now) 4:2:2 was much needed, because each field needed its separate picture.