B17 MAX- Deanan? Graeme?

[Stuart English]

MAX mode

MAX mode

What's happening is that the MAX mode encode is more complex (and hence delivers maximum image quality)

Therefore it also takes longer to decode when using a software solution (as opposed to on-camera where we can use hardware)

But by reducing the number of pixels that need decoding, your decode speed will increase.

At 4K HD and 4K ANA the number of pixels is small enough that a software decode should be real-time.

So choosing to shoot with MAX / not MAX is only relevant to 4K 16:9 and 2:1



Note: At 3K 16:9 and below, the number of pixels is small enough the camera always records in MAX mode anyway.

 

[Damien Molineaux]

4K HD? Could you explain

If you do a little search, you'll find out that Build 17 offers a new frame size (besides 4K 2:1 and 4K 16:9) called 4K HD which is actually using 3840 x 2160 pixels of your sensor, exactly twice the hight and twice the width of HD (1080p). This allows for faster and optimal debayering to HD, if that's what your finishing to.

Cheers,
Damien

 

[Rainer Fritz]

So Stuart, will it be an idea to take the camera hardware which plays in realtime 1080p on a PCIe card and have a dual link SDI on it.... ?????



rainer

 

[JanneJansson]

Agreed. That's been killing me for a while now. I hate having to do things manually... and having to lock up a Scratch seat for hours to do a render.

All that is needed to make a super-uber-render farm possible in an easy way, is just REDline binary for linux

 

[Patrick Tresch]

So Stuart, will it be an idea to take the camera hardware which plays in realtime 1080p on a PCIe card and have a dual link SDI on it.... ?????



rainer

YES!

Please make it happen like you did for the R3D support in color : as a big SURPRISE!!!:w00t:


Patrick

 

[Brandon Fraley]

alright, this is all over my head.

When people say "real-time decode", what exactly does this mean? I assume it doesn't mean real time transcode, to say prores, right? then does it mean simply real time playback? and if so in what form? and on what hardware?

Also, I was just playing with the camera and it looks to me that 4k 2:1 and 4k HD use around the same amount sensor surface. is 2:1 really that much more complex than 4k HD?

any insight would really help me out.

THANKS

 

[Stuart English]

Decode

Decode

Real time decode means you need to get 23.98 fps playback from a software decoder. The application is dubbing 4K . R3D files to HD-SDI - such as HDCAM SR dailies.

If you are transcoding to ProRes then shoot in MAX mode, as you won't be at this fps anyway....

 

[Brandon Fraley]

so, if im never dealing with tape, or scratch, will the MAX checked have any consequence to me? Will my transcodes be any longer? Will I get slower playback in QT or FCP, etc?

Same question with 4k HD. Will shooting 4K HD mean faster transcodes than 4K 2:1? faster playback in QT, FCP?

THANKS

 

[Rainer Fritz]

so stuart how do you think it will be possible to make a realtime (25 fps) out from color to HD-CAM (SR), when i am working native from the red files shot in for ex. 4kHD, via a special card from red or via a Kona3 for ex. ??? The footage will have a grading on it....

so will only safe time if i am first rendering to uncompressed QT 4:2:2 ??

with a full debayer??

thx
rainer

 

[Stuart English]

MAX mode

MAX mode

so, if i'm never dealing with tape, or scratch, will the MAX checked have any consequence to me?

None.

If you are not doing either one or those, use MAX.

 

[Brandon Fraley]

None.

If you are not doing either one or those, use MAX.

Thanks Stuart. Concise and specific

 

[Blair S. Paulsen]

Just say no

Just say no

I encourage everyone to uncheck the Max box unless they are certain that it will never be dealt with in a post house other than yours. There is already too much FUD surrounding the RedOne, until someone can show me a meaningful difference between Max and non-Max why create a potential land mine for real time post operations?

 

[Stuart English]

MAX mode

MAX mode

MAX on yields the highest image quality for 4K images.

MAX off was added to allow certain existing software post production tools to render out to tape in real time, i.e at 23.98 fps to a VTR.

MAX on with 4K HD should render out at 23.98 with the above tools anyway.

You have the information, the decision is yours.