anyone done 25fps prores using atomos ninja on gh2 ?

There is no 25fps on the GH2. :P



I bet you were asking about 50i (ie 25i/50fps) though, and it should be possible to record 50i with the atomos ninja and then de-interlace it in post. I don't know what it'll look like though, and I don't know if anyone's tried capturing 50i via HDMI yet.

It might, sadly, look better actually recording in 24p and speeding it up in post.
 
There is a long thread discussing HDMI capture and another about an avisynth script. Truth is it is probably not conveniently viable at the moment as there are issues with it. Your mileage may vary. Do a search for the threads and determine if it is worth it. The picture is sharper but not really any better for colour grading in my limited experience.
 
Well... A big surprise today on the new Atomos website. The Ninja does NOT support 1080p25. Ridiculous!!!
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Hi Martin

The Ninja does support 1080p25 but this has not been included in the first release of the software. It will be in the next release which will follow shortly. We will try not to be so ridiculous in future.

By the way, we have had reports of successful recording with a GH2, but we're waiting for more reports about exactly what was recorded before claiming any success with this camera.

Dave Shapton
President
Atomos EMEA
 
Isn't Atamos UK (25p) based company? Strange then not to include 25p in the initial version...
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It may seem strange, but because it's not part of the HDMI standard, it's taken more work (= more time...) to engineer it.

We're based in Melbourne, Australia, by the way, with offices in the UK and Hong Kong.

Dave
Atomos
 
Well, Dave, that's incredible good news. Especially about the GH2. It's a matter of patience on all sides. I hope that my Ninja arrives this week. I shoot exclusively 24p with both the GH2 and the EX1R, so i can also let you know - same day - what and how the GH2 records.

Martin.

David Shapton said:
Hi Martin

The Ninja does support 1080p25 but this has not been included in the first release of the software. It will be in the next release which will follow shortly. We will try not to be so ridiculous in future.

By the way, we have had reports of successful recording with a GH2, but we're waiting for more reports about exactly what was recorded before claiming any success with this camera.

Dave Shapton
President
Atomos EMEA
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Martin,

Yes, let us know how you get on with the GH2. I think we'll get quite a few reports coming in quickly (judging only by the rate at which Ninjas are flying out of the door). I read that long thread about AVIsynth etc but I think mileage may vary. As you said - I think it's a case of patience being needed with this one: let's see how people get on with it before drawing any conclusions.

Dave
Atomos
 
martinbeek said:
Well, Dave, that's incredible good news. Especially about the GH2. It's a matter of patience on all sides. I hope that my Ninja arrives this week. I shoot exclusively 24p with both the GH2 and the EX1R, so i can also let you know - same day - what and how the GH2 records.

Martin.
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Martin, please let us know how you liked using the atomos ninja with your GH2, we have a couple of GH2 in our studio and we are looking on getting this external recorder to do some dual recording when we shoot weddings and live events.
 
Atomos Ninja has 1/8" audio input. No AGC. Hopefully not as hot as GH2's mic input. If it can sync video and audio by audio delay control, this can cut down many PP hours.

But... wouldn't it take at least one or two generations to iron out all issues?

GH3 or GH4. Atomos Ninja v.2 or 3 or something better. 500GB SSD at affordable price.

Possibly standization on 10 bit real time encoder... but Prores... Apple... Never mind...
 
@Stonebat

You seem to be making several points here.

With the Ninja, it is basically software-controlled hardware. Virtually every aspect of its performance (apart from physical limitations) are modifiable in software. So there is no need to wait for future versions, because any issues are fixable now.

You can always wait for future generations, but you won't benefit from using the products now.

Not sure what the point is you're making about ProRes, but it was the codec that most people asked us to implement.

Dave Shapton
President
Atomos EMEA
 
You the president? It's great that you are reading GH forum.

Don't get me wrong. Initially I was excited about the possibility of uncompressed 10 bit real-time recording. But GH2's crippled HDMI output killed the fun. Hopefully you get it right about the software controlled hardware fixes the issue. If it works, that's very very cool.
 
Prores 422 is ok, but the codec is available only from FCP 7. As CS5/Avid/SVP popularity rise, more people will look for other codec. e.g. DNxHD 175x 10 bits

Wouldn't it be great to have a menu option selecting Prores or DNxHD?
 
Don't get me wrong. Initially I was excited about the possibility of uncompressed 10 bit real-time recording. But GH2's crippled HDMI output killed the fun. Hopefully you get it right about the software controlled hardware fixes the issue. If it works, that's very very cool.
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We're looking very closely at the output from the GH2 and some of our users are getting very good results with the Avisynth scripts that you can see on this forum. I wouldn't worry too much about the 10/8 bit thing. If the picture from the camera's compressed footage is good, it will look even better when recorded on the Ninja at 220 mbps or whatever. The number of bits is only one of the factors in determining perceived quality. On the lower costs cameras, even if they did output a 10 bit signal, you may find that the additional two bits only contain noise and very little additional information. ProRes is a 10 bit codec, and HDMI can carry 10 bit signals. Even if we receive an 8 bit signal, we make it 10 bits by adding two zeros. This may sound a bit pointless, but it does have advantages, because every subsequent stage of processing will be done at 10 bit resolution, so dissolves and gradients will look better. Note that this can't improve the original image, but if you then put, say, a vignette or filter effect in, the effect will be done at 10 bit resolution.

Yes, it would be great to have a choice of codecs, especially cross platform. We will support other codecs, but not immediately as we are focusing on other areas at the moment.

Dave Shapton
President
Atomos EMEA
 
Exactly. 10 bit encoded source files will definitely help post-processing tasks like color grading. I've been transcoding 8 bit avchd files to 10 bit DNxHD 175x. The file size increases roughly by ten times.
 
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