PMW-300 Questions
Hello All.
I'm about to sell my 4 year old EX-3 and purchase a new PMW-300K1 I have a few questions regarding the new model: 1. The XVAC upgrade that is planned for 2014 - what will it bring? Obviously the camera can't record 4K, so will it be a higher bitrate? maybe 4:4:4? any info on that? 2. This question is directly linked to the first one - if the upgrade won't bring 4:4:4 recording in-camera - I am considering on buying an external monitor/recorder - the Convergent Design Odyssey7Q. In order to record 4:4:4 these recorders require 3G-SDI signal from the camera. Will the PMW-300 have this output option? 3. In case this will not be an option (I will not need a recorder to record 4:2:2 since the camera does that) - Any recommendations for a good field monitor? I am considering a 7" BON or TV Logic. Many questions... Any help is greatly appreciated... Arbel. |
Re: PMW-300 Questions
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Arbel ~
It will bring you XAVC 10-bit 422 @100-mbit. That's the latest I have heard to date. No 444 for sure. See attached brochure. Chris Young CYV Productions Sydney |
Re: PMW-300 Questions
The camera ships with 50mb/sec enabled. 4:2:2.
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If that is the case, then the XAVC should be a much better codec if it's worth an upgrade just to double the bit rate but no increase in bit depth to 12 bit. In any way we should start stocking up on memory cards... |
Re: PMW-300 Questions
On the internal recording side that's an increase from 8 bit (XDcam codecs are 8 bit) to 10 bit. So it may pay off if you're thinking about doing some elaborate grading. Plus of course the better usability of the viewfinder and a bunch of other improved features....
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Re: PMW-300 Questions
The sensors see no benefit from increasing from 10 to 12 bit since they are by design noisy compared to larger Super35 sensors.
4:4:4 however may be possible, but the internal circuitry only processes at 4:2:2 and outputs over SDI at 4:2:2. Specs also don't indicate it will support 1080p60, because that requires 200Mbps XAVC in order to record. I'm holding off purchasing this since by the time the XAVC upgrade comes, only recording 30p would still kind of be laughed at with the move to 60p. |
Re: PMW-300 Questions
Hope not.. 50/60p looks terrible..
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Re: PMW-300 Questions
4:4:4 out would require 3G HDSDI and I don't know that the HDSDI is 3G capable.
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What we DO need is an appropriate consumer delivery system for 60P... |
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The only possible delivery method is AVCHD 2.0, and that's not a BD spec. Standard BD spec limits to 1080i60 or 1080p24. To deliver 30p on a BD, you have to use PsF. |
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I'm just getting REALLY tired of the ciné folks insisting that only 24P matters. |
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Setting that as the standard doesn't therefore mean all transmissions would have to be such - it would still allow transmissions in all current standards, plus 4K at 24-60fps, let alone 1080p/60. Before anyone talks about bandwidth, then doubling the framerate does not mean doubling transmitted data rate, assuming an interframe system. Such relies on keeping the time period between I-frames the same (say 1/2 sec), so you're only increasing the number of difference frames. Since they are of smaller size than I-frames, then datarate does not increase in proportion to framerate. To pick up on Jacks earlier point, then is there any possibility the PMW300 may have a long-GOP mode of XAVC? To allow 60p mode with much less than 200Mbs? |
Re: PMW-300 Questions
my pmw-300 arrived
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Re: PMW-300 Questions
Well, as far a the "Look" of 25p/50p video goes -
we have been somewhat of "brainwashed" by decades of filmaking technology to think stroby video looks "better" and more "cinematic". When you come to think about it, when we move our head from side to side, the image our eyes see does not strobe in any way whatsoever. I admit to the sin that to me interlaced and 50p video also looks "cheap" and not professional. But the only reason for that is what I grasp as "quality" look, and nothing else. That being said, I think that I will take a while before the 25p/30p cameras become outdated, and after 4 years of loyal service I believe the EX-3 can step aside with great respect, and I'm pretty confident the PMW-300 will bring an equal (if not better) ROI for my type of cinematographers. And after the answers from Alister and others - Would an external recorder like the Odyssey 7Q bring any use coupled with the PMW-300? |
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