HDR movie?

[surf]

Could we make hdr movies with digiatl camera just like hdrimages? I think it could be done with high enough frame rate and a fast processor. The camera could capture ie:3*24 fps and the processor could mix the images with different level of light, and reduce the frame rate to 24fps.
woud it work?

[William_Robinette]

Search in the Red forums, I thin this was talked about there. I think the conclusion was, no, it wouldn't work.

[Anhar Miah]

It would be pointless in my view, HDR images are used to mimic the dynamic ranges values of a particluar environment, and usually the gloabl light values of an environment are pretty fixed.

[SomewhereinLA]

Well that's pretty much what the RAW format does (somewhat).

[surf]

Originally Posted by Anhar Miah

It would be pointless in my view, HDR images are used to mimic the dynamic ranges values of a particluar environment, and usually the gloabl light values of an environment are pretty fixed.

but it is nice!

[Shaw]

Anhar, you're speaking from a 3D artists perspective ;) and their use of 'HDR.'

It's far from useless for video if you could capture all that information for later mapping to 8bits.

[Aaron Marshall]

Originally Posted by SomewhereinLA

Well that's pretty much what the RAW format does (somewhat).

No, it doesn't work at the level of an HDRi. If you take a shot 2 steps over, and 2 steps under, and then one right on the money you'll have very different curves to blend from shot to shot. A RAW image file is flexible, but not that flexible.

The only way you could possibly get HDR video is shoot with multiple cameras. You could have one dead on target, and two other cameras under and over exposed braced to the sides. Depending on which focal length and distance to subject you used you could mathematically figure out how much you needed to offset the left and right images in post. I bet it could work. I would use straight up 35 or 50mm primes and make sure they were meticulously matched.

It would be neat for a novelty shot or two.

Originally Posted by Anhar Miah

It would be pointless in my view, HDR images are used to mimic the dynamic ranges values of a particluar environment, and usually the gloabl light values of an environment are pretty fixed.

I see your point. But you have to admit, for an effect it would be pretty darned neat. You could shoot a flashback scene, or dream sequence that could feel so eerie and surreal. Pointless? No. Eccentric? Yes.

[surf]

well, it would make a lot compositing work unnecessary

[Dennis_FIQ]

I just wanted to bump this up to see if there where an fresh thoughts on the possibility of HDR Video.

[Raptor365]

According to wiki the Pentax K-7 Digital SLR has an HDR capture mode. Not sure how many other cameras have it. You could try a stop motion HDR sequence with it though.
If that works and with some still cameras being able to shoot video now, albeit at a low frame rate, I'm sure it's just a matter of time.

//The Pentak is listed as being able to shoot 1280x720 stills at 30fps, whether or not that would work in HDR mode I don't know.
But if you can get the images recorded as HDR stills, I think the hard part is done.

//I see the K7 precomposites the HDR into 1 image from the 3 different exposures, so I guess the best one could get is a RAW file to work with.

Some custom software or plugins may be needed to make compositing easier but that wouldn't pose a big problem.

The pictures do look cool...