Scarlet / Noise

[Stephane Marino]

I found this little chart for Alexa which explains very clearly how the ISO setting change the dynamic range distribution :



Regarding the difference between the Red One and the Scarlet, there are some threads claiming that the Red One has a clearer image.
But some users just explains that we should use the Scarlet differently to get the same results.
Is there an official position from RED regarding the noise in the Scarlet vs Red One ?

[Maik Müller Menendez]

Why go so far when everything is so close? ;) There are some really nice articles in the LEARN-section on RED.com:
http://www.red.com/learn/red-101/exposure-with-red-cameras
http://www.red.com/learn/red-101/red-camera-exposure-tools

[Dr. Sassi]

May I ask one question, as the ISO discussion leaves a little bit the White Balance out. Is it correct to "imagine" that a white balance is nothing else than to adjust the ISO for R, G and B separately?
This might be technically in-correct, but how else would WB play into this discussion above (which I have enjoyed a lot, thank you). I try to understand the concept, so sorry if I'm completely off with my question.

[Rodrigo Prata]

May I ask one question, as the ISO discussion leaves a little bit the White Balance out. Is it correct to "imagine" that a white balance is nothing else than to adjust the ISO for R, G and B separately?
This might be technically in-correct, but how else would WB play into this discussion above (which I have enjoyed a lot, thank you). I try to understand the concept, so sorry if I'm completely off with my question.

As far as I know, White balance is exactly that, to make sure all color channels are equaly exposed. If you shoot with tungsten lights for instance, the blue channel gets under exposed and when you adust white balance, you bring the blue channel up and that introduces noise.

[Dr. Sassi]

Thanks Rodrigo, very nice of you.

[Miles Heckendorn]

I found this little chart for Alexa which explains very clearly how the ISO setting change the dynamic range distribution.....

That chart made the lightbulb go off! Thank you! Has anyone seen a similar chart for the Epic/Scarlet?

[Stephane Marino]

That chart made the lightbulb go off! Thank you! Has anyone seen a similar chart for the Epic/Scarlet?

Hi Miles,
I would say that this chart is camera agnostic... I posted it here just to understand the effect of the ISO setting on a digital sensor.

[Uli Plank]

The dynamic range would be a bit less for the Scarlet (without HDRx), but the same principle applies.

[Miles Heckendorn]

Hi Miles,
I would say that this chart is camera agnostic... I posted it here just to understand the effect of the ISO setting on a digital sensor.

The dynamic range would be a bit less for the Scarlet (without HDRx), but the same principle applies.

Thanks for the info!