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Uncompressed 10 bit vs Blackmagic 10bit
Hi,
This is a strictly SD question. If I am working with material that has been home transfered from super 8 to mini dv, and I digitize via firewire, cut in a regular dv sequence and RE-RENDER the final piece to either a:
10 Bit Uncompressed (apple codec CCR601 *what does this mean) or
10 Bit Black Magic Sequencethen taking that sequence to print to video
am I really enhancing the quality of the image – or is this a myth because it sounds so much better than regular dv codec? And which one is better? The apple or the blackmagic?
Thanks so much,
Lili
on a sidebar, I also deal with HDV on a separate online system, and have determined that the HDV1080i 60 codec is much better than the apple intermediate codec…It even looks as good if not better than our HDCAM upconvert test. -
4 Replies
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You will only gain anything by doing this if you have a bunch of titles and graphics to rerender in 10 bit. DV is compressed at the time it hits the tape so rerendering in 10 bit does not magically make it better. Some will argue that digitizing dv over SDI into 10 bit will result in a better image. Some will argue that this is hogwash, I encourage you to find out for yourself what you think on that subject.
SInce you have already transferred from SUper 8 to dv, the 10 bit render is super unnecessary. Stick with editing dv unless you get a deck with SDI to try the proposed theory above, OR, you project is riddled with graphics and text, or you are doing anything except transferring 8 to DV. How did you do that transfer by the way?
In the olden days (pre quicktime 7), apple did not have a codec that supported hd color space, so blackmagic modified the apple codec to include hd color space for people that were working with HD years ago. Since apple has included the HD color space with the onset of quicktime 7, blackmagic has switched to using the apple codecs as the default codec. The apple codec if fine to use if you must, but DV should suit you just fine for this kind of situation.
In really simple terms 601 refers to the color space of SD video. 709 refers to HD, it a system of numbers that engineers came up with in the labs when staring at waveforms vectorscopes while doing math on an abacus.
Hope all this helps.
Jeremy
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If you’re going back to DV, what you’re proposing might even make the image worse. It won’t make it better. To get the benefit of a better codec, you’ve got to be mastering to a higher format than DV, say Digital Betacam.
Graeme
– http://www.nattress.com – Film Effects and Standards Conversion for FCP
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Assuming you’re mastering to Digibeta and not back to DV, DV -> BMD codec is better than DV -> Apple Uncompressed. Check out http://www.onerivermedia.com
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THANKs for all the advice.
oh, as far as the super 8 transfer goes, it’s literally shooting it off a screen. Ultimately there is flicker, but I can’t really compensate for that when I have a pjct that is running at 24fps and my shutter speed is 30. (or 18fps and 15video) unless there is a filter that I don’t know about. Although I have been doing experiments w/ the HD750 camera, and it has a feature called Electronic Clear Scan that gets rid of the filter, but I’m having some color balance issues with that too. As well as the 4:3 to 16:9. It’s basically a home done telecine, and yields alright results.
Has anyone else done experiments of such? 16mm or Super 8mm home telecines?
lili
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