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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

HDRx Overview...

If I am getting this correctly, you just blend the amount of HDR you have programmed into the X track with the A track.

If I visualized this on an FCP timeline, track X would be over track A and I would then set the opacity of track X to blend in the amount of DR I am wanting.

OR

An example of two layers in photoshop and being able to blend those, the magic motion adjusts the two shutter speed ofsets.

Very cool. That things packs some serious processing power.

This all happens with R3D files and the two tracks contained within an HDR X recorded file.

But will this be an "allthe time" tool, or will it be something more for very specialized situations?

Can we watch it RT with a rocket card installed (at 1/2 quality for example)?

David


Also: I forgot to say thanks for the intitial post. It's a good clear explaination. Now I see why the AISC stuff was so hard to spin.

David
 
Exposure bracketing in motion pictures on the same take of the same scene, from teh same camera at the same angle.

Is this a first? I am almost certin it has never been done before...

I could capture every scene twice, recording two different exposures and then chosing either one or blending them at a midpoint.

Molto cool!

David
 
Rudi Herbert said:
It would have to. If the X frame differs only on its shutter speed, then the higher the shutter speed, the sharper the resulting image. Unless some additional interpolation/estimation is done to keep the amount of Magic Motion constant, the more stops are added to the X frame the less blur you'll have on the blended track. In my case, since I very much despise the unnatural blurriness of 1/48 shutter on moving shots, I would probably use HDRx™™ at +6, not for extended DR but for clean, sharp images. In fact, to me, Magic Motion is almost as important, if not more, than the additional stops of DR that this technology affords. A case of a very happy byproduct.
Click to expand...
Thanks Rudi,

Good explanation. And, I can see using HDRx™ a lot for the motion, as you have suggested. Maybe the exception would be where there is little movement such as in dialog scenes.
 
Jannard said:
During recording, the two tracks are "motion-conjoined", meaning there is no gap in time between the two separate exposures. If they were two alternating standard exposures, there would be a time gap between the two tracks that would show up as an undesirable motion artifact.
Click to expand...

Jim, can you explain this a bit more? Does it mean that both exposures start at the same time but one ends earlier? Or does it mean that the second exposure begins exactly after the first ends?
 
Rudi Herbert said:
In my case, since I very much despise the unnatural blurriness of 1/48 shutter on moving shots, I would probably use HDRx™ at +6, not for extended DR but for clean, sharp images. In fact, to me, Magic Motion is almost as important, if not more, than the additional stops of DR that this technology affords. A case of a very happy byproduct.
Click to expand...
I think Jim and others may have been mistaken when they said we would only use HDRx for special circumstances. I can see using it almost exclusively due to the fact that once it is used to establish the baseline for footage motion, you have to continue with that same motion "look" throughout.
 
David Battistella said:
If I am getting this correctly, you just blend the amount of HDR you have programmed into the X track with the A track.

If I visualized this on an FCP timeline, track X would be over track A and I would then set the opacity of track X to blend in the amount of DR I am wanting.

OR

An example of two layers in photoshop and being able to blend those, the magic motion adjusts the two shutter speed ofsets.
Click to expand...

Thats how I saw it, or rather like using an effect where you choose the percentage of 'blend with original' - similarly with Magic Motion.

No mean feat!
 
i know its a dumb question! But what is the difference between HDRx™ and HDRx™™ and HDRx™™™ and the rest of ™™™™™™™
 
David Battistella said:
Exposure bracketing in motion pictures on the same take of the same scene, from teh same camera at the same angle.

Is this a first? I am almost certin it has never been done before...

I could capture every scene twice, recording two different exposures and then chosing either one or blending them at a midpoint.

Molto cool!

David
Click to expand...
David, I am unclear on this... can we actually choose the X track only or is it an A track + X track or A track only choice?
 
Danny Murray said:
i know its a dumb question! But what is the difference between HDRx™™™™ and HDRx™™™™™ and HDRx™™™™™™ and the rest of ™™™™™™™
Click to expand...

It is just a bug. The software is set to automatically add a ™ everytime someone writes HDRx. Every time someone edits their post containing a ™ it will add another one.
 
Elsie N said:
David, I am unclear on this... can we actually choose the X track only or is it an A track + X track or A track only choice?
Click to expand...

Since it is a slider I would assume you can choose from only A to only X.

Emmanuel
 
All seems very straight forward. Stream A primary, stream B secondary that can have a variation in strength, then add the two together to produce Z the magic that Jim and the RED team has made. Keep things simple is always best if possible.
 
Just had a cool idea (I expect Jim and the team have already happened upon it), but as HDRx takes two streams one with a faster shutter speed then the other, it would be very cool to use the still tagging feature in conjunction with the recording of the two streams - you could get video with the motion we are used to as well as stills extracted from the stream with the faster shutter speed (as is usually desired for stills). Would create a kick ass way of shooting 'dual' content.
 
Nicholas Warren said:
Just had a cool idea (I expect Jim and the team have already happened upon it), but as HDRx™ takes two streams one with a faster shutter speed then the other, it would be very cool to use the still tagging feature in conjunction with the recording of the two streams - you could get video with the motion we are used to as well as stills extracted from the stream with the faster shutter speed (as is usually desired for stills). Would create a kick ass way of shooting 'dual' content.
Click to expand...

The only problem is, that the stills would be underexposed.
 
I'm sure thats something that could be sorted out by adjusting ISO - it's all meta data after all.
 
Nicholas Warren said:
Just had a cool idea (I expect Jim and the team have already happened upon it), but as HDRx™ takes two streams one with a faster shutter speed then the other, it would be very cool to use the still tagging feature in conjunction with the recording of the two streams - you could get video with the motion we are used to as well as stills extracted from the stream with the faster shutter speed (as is usually desired for stills). Would create a kick ass way of shooting 'dual' content.
Click to expand...

Dont forget about underexposed X-stream. Sharper but darker stills :-)
 
Not suggesting that this is a way of strong arming HDRx into doing something it wasn't designed for, but rather a different mode which uses the same principles.
 
That's where the slider comes in. Great HDR exposure from the blend, sharp motion derived from the X stream.
 
That would be another thing I would like to see. Take a picture in a really dark environement with HDRx. Can you get it to be sharp (alas no motion blur) while brightening it up with the other stream?
 
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