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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 :)

#21...

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Nikhil Kamkolkar said:
OT -- but I assume everyone experienced the "Reported Attack Page" error that stopped me from checking out the forums. Finally found out on CML what was going on. One more reason for Jim (or RED) to setup a twitter feed we can follow...
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I have no idea what the "Reported Attack Page" of yours is, but nobody who is the least serious about security should use Twitter.
 
Nikhil Kamkolkar said:
OT -- but I assume everyone experienced the "Reported Attack Page" error that stopped me from checking out the forums. Finally found out on CML what was going on. One more reason for Jim (or RED) to setup a twitter feed we can follow...
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Just suggested to the mods a Forum to Twitter app that could make this happen automatically.

It would be a nice thing to have indeed considering this Twitter frenzy.
 
Jannard said:
I guess the original post was a Scarlet post. At that time #21 was just a mistake. Since I forgot what I posted and what it was in reference to, I just thought this new magic HDR should go there since it is so cool. We are trying to see if we can implement it in Scarlet... but no promises today.

Jim
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Huh?

So back to square one for Scarlet. Any version of HDRx (even "HDRx lite") that extends DR will be welcome, though it seems the limiting factor may be Scarlet's ASIC's.

Regarding what appears to be Jim's senior moment, as a member of the over-55 crowd, I empathize completely. On the positive side, I'm reminded of Professor of Neuroanatomy at UC Berkeley Marian Diamond's speculations on wisdom and anatomical changes in the aging brain. In a nutshell, while cell death in aging brains is a known fact, less well known and even less appreciated is the fact that in an active aging brain new dendrites (circuits connecting brain cells to each other) are constantly forming, and these can not only replace old circuits, but develop new and more complex connections as well, resulting in a neural network that may have lost a few facts, but has gained in creativity, adaptability and (ahem!) wisdom. Feel better now? I do. Now if only we can get this youth-oriented go-fast culture to recognize and value wisdom.

PEACE
 
Chris Parker said:
a question about HDR 'mode'. why is it a mode?

wouldn't one want to shoot with increased dynamic range all the time? i am curious about this feature and can't wait to hear more details.....
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Speculating, I'd assume it was because it compromises some other function(s) or features, like currently Red One can only shoot 120fps in 2K? But your guess is as good as mine! :smile:
 
Chris Parker said:
a question about HDR 'mode'. why is it a mode?

wouldn't one want to shoot with increased dynamic range all the time? i am curious about this feature and can't wait to hear more details.....
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good question chris?
 
Chris Parker said:
a question about HDR 'mode'. why is it a mode?

wouldn't one want to shoot with increased dynamic range all the time? i am curious about this feature and can't wait to hear more details.....
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It is generally thought of as a mode from the stills usage of HDR: only a few scenarios lent themselves well to the multi frame nature of HDR. Motion HDR is minblowing in this regard- if it works as well as we might expect considering Jim's words. I'd love to see it in full blown motion mode.

However, I know nothing about motion HDR but I'm gonna stick my neck out and say It's still a "mode" because there will be a price to pay somewhere else, but that might be a very small price with the red raw and larger sensors, etc.. The way we might opt for slightly more compression in order to have higher frame rates.

Another guess based on what was: If (RED) HDR's quality was indistinguishable from its native sensor DR performance (other than the added stops) I can't see why it would be sold as a sort of feature/mode, rather than selling the camera as a 19 stop entity. Huh, Jim, Graeme, just how daft am I? When to HDR and when not to HDR ??? (:
 
Bill Anderson said:
However, I know nothing about motion HDR but I'm gonna stick my neck out and say It's still a "mode" because there will be a price to pay somewhere else, but that might be a very small price with the red raw and larger sensors, etc.. The way we might opt for slightly more compression in order to have higher frame rates.
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If it's related to read/reset times as Peter suggested, then I assume we would see the return of the skew that was present in the early builds of RED One or like on other slower sensors like the Nikon D90 or others. Since the sensor would compound times to produce a single image, a native read/reset time of 5ms would turn into 10-12ms for HDR in the scenario outlined by Peter earlier.

That's my assumption, but I know that assumptions in regards to RED tend to make an ass out of me, myself and I.

KO
 
Just an idea...dont know the way sensors work and the limitations in designing them.
Is it possible to have a non-linear sensor in terms of ISO rating?
Say the sensor is set at a particular ISO rating. From the color temperature of the image, the highlights and shadows area(pixels in these regions) are mapped out. The ones in the highlights area are assigned ISO rating few stops lesser than the set ISO. The ones in the shadow region are assigned ISO rating of few stops higher than the set ISO, which works well for the mid tones and is left unaltered.
 
Epic can handle HDR processing without any problems. It's a powerful camera. Probably, You won't be able to shoot 100FPS at the same time...

Please tell I am wrong !
 
Nils Ruinet said:
So are we still talking about RAW when using this HDRx mode ? It seems to require some heavy in-camera processing, so my guess would be no ? Will that be recorded in Redcode RGB ?
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I'm not sure why it wouldn't still remain in RAW.

If everything occurs at sensor level and/or interpreting sensor data you just store compressing to REDCODE.

Ditching RAW on this wouldn't be nice.
 
how about some sort of fluctuating voltage to the sensor while it takes pictures?

lets say you set the peak voltage and the minimum voltage and during a single frame being taken it ramps from minimum to max.

it would probably have a similar effect to motion blur differences/delays in the highlights and lowlights as rolling shutter though...
 
Pietro Impagliazzo said:
I'm not sure why it wouldn't still remain in RAW.

If everything occurs at sensor level and/or interpreting sensor data you just store compressing to REDCODE.

Ditching RAW on this wouldn't be nice.
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Well if it needs to be processed in camera, like it seems to be the case, then it's not RAW anymore, is it ?
I guess all depends on what they're doing exactly, which we don't know for sure.
 
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