great explanation. I had to watch it a couple of times but I got there in the end. thanks.

This is a very common implementation of ISO in cinema cameras, the main difference is that brands like ARRI and Sony calls it Cine EI (exposer index), in my opinion a much better name than simply ISO. The other difference is that RED doesn't offer the real native iso for each of their cameras, something that to me sounds insane, on a cinema camera with cine ai you can of course go up and down the range with no loss in dynamic range, just like you described, but knowing the native iso is a much better starting point compared to red's solution of just start with 800 for all of our cameras. In fact they give arri and Sony display the amount of stops shifting in the highlight (above middle grey). Great video, and a really good way of explaining it. Thanks

I recently learnt about this and putting the Komodo into a lower ISO like 400-640 when in darker scenes to preserve shadows and minimise noise and although at first it seems super counterintuitive, it makes total sense now and gives great results. So many people complain about the noise in this camera and I wonder if they're just mis-configuring it for their shooting setups. This is the first vid I've come across that has really explained the ISO stuff in a simple step by step process - amazing work, it really helped solidify stuff for me and I think it's gonna help so many people!

@nationalvideography2034

Жыл бұрын

Thanks man!

@Cinnovations

Жыл бұрын

This is like when I’m talking to blackmagic shooters and they insist on shooting low light at the upper dual native iso and shoot high key scenes at the lower one. 🤦🏻‍♂️ I need to surround myself with people with more experience, not less. It’s frustrating to see people actively sabotage their work and not listen to advice.

@cubul32

Жыл бұрын

@@Cinnovations But you would approach it like that with a BM camera, right? I'm confused. This info is specifically for RED.

@Cinnovations

Жыл бұрын

@@cubul32 this principal applies to all cameras. High isos protect highlights, low isos reduce noise and detail in shadows. Shooting day ext vs shooting night interiors or exteriors generally.

@cubul32

Жыл бұрын

@@Cinnovations So, you shoot like this and find that something improved? I'm waiting for damn Asus to fix my editing laptop and can't test it yet.

This is completely counterintuitive, and the exact opposite of how we learned to use ISO in traditional Mirrorless cameras. That said, this has been the best explanation I’ve seen so far. Great work.

@nationalvideography2034

Жыл бұрын

Thanks!

Thanks for this. I feel I've already wrapped my brain around this, but I like to remind my brain of this every once and awhile to reverse all the years of shooting on other systems 😅

I needed to know this!!!? Thank you

First I've heard of this and I just started a project with the Komodo, and was personally liking the footage I captured with the Lumix S1H over the Komodo.

Great video. Very well said.

@nationalvideography2034

Жыл бұрын

Thanks!

Wow thank You!

Great! Thans

This is gold

This video sums it all up. I’ve had it wrong this whole time. Coming from the Sony lineup….

@BalaKrishna-bq5iz

Жыл бұрын

Sony cameras (A7siii, FX3, FX6.....) behave the exact same way. This isn't something unique to RED. And this isn't some feature, this is just us misunderstanding how camera sensors react. High ISOs let us see more into shadows but its the highlights that are cleanest there. Likewise, its the shadows that are cleanest at low ISOs. I routinely run FX3 at 12,800 even when there is more than enough light and use a good ND. That gives a very pleasing highlight rolloff/gradation.

@nationalvideography2034

11 ай бұрын

That’s interesting that it works the same on Sony, it must be across the board how ISO functions on digital sensors. I agree it’s not a feature, rather it’s the functionality of the sensor. But it all works to make up its characteristic. I haven’t seen a lot of videos discussing this on the Sony in detail, definitely a good topic.

Very interesting. Meaning in very bright / sunny situations you need even more NDs ?

@nationalvideography2034

Жыл бұрын

lol... that's right!

@B1TN3RD

Жыл бұрын

You need as many ND‘s as needed to make your traffic lights disappear, then you are correctly exposed with the RED sensor. On a very sunny day you may use ISO 1200 during shooting, however even you shoot in RAW, changing the ISO in post can impact your image quality. So when once set your traffic lights correctly, you mustn‘t change your ND settings even when increasing or decreasing your ISO. Otherwise you will shrink down the dynamic range capabilities of of the sesnor, when the traffic lights appear.

👍

Is there a quick place we can find the reference material for this info? Would be great to read it.

@nationalvideography2034

Жыл бұрын

Absolutely… www.red.com/red-101/iso-speed-revisited

@nicklarovere

Жыл бұрын

@@nationalvideography2034 thank you my friend

But then how do you light a scene? do you light a bright scene for iso1600 or do you simply light the scene with iso800 in mind and then switch to iso1600? which would make the appear to bright on the monitor.

@nationalvideography2034

Жыл бұрын

I would say you light for iso1600… having an iso in mind will dictate a lot of other choices, and help you achieve better physical light balance… i.e., when you compensate for the extra stop of light. 800 is a good starting point if you don’t know if the scene is low or high key, or if it’s a mid key scene.

Can you address the difference between shooting in R3D raw and Prores as it concerns ISO implementation?

@nationalvideography2034

Жыл бұрын

Sure… I’ll do a R3D vs Prores video… thanks for the suggestion! … but a heads up the only difference is you can’t change it in post… ISO works the same regardless of codecs.

@alkim_art

Жыл бұрын

@@nationalvideography2034 Thank you for considering covering R3D vs Prores. Yes I am aware of baking in the ISO in Prores, But wouldn't you still want to shoot at higher ISO's above 800 in say darker scenes?

@nationalvideography2034

Жыл бұрын

@@alkim_art no, because as I explain in the video Komodo’s ISO amplification does not have any filtration. So it will just make your footage really noisy. Also, because of this tonal steps redistribution, it’s the lower ISOs below 800 that perform best in low key scenes. Furthermore, lower ISOs will have less amplification, so less noise in the shadows. You really can’t use ISO on the Komodo like on other cameras. For further readings and my sources please check out Red’s own literature on all this: www.red.com/red-101/iso-speed-revisited

@creativegreats

Жыл бұрын

What do you mean by amplification?

@nationalvideography2034

Жыл бұрын

@@creativegreats ISO adjustment is basically an amplification or increase in brightness to the image captured by the sensor. So if you think of ISO something like gain control, it’s kind of the same thing as amplification. But what I’m referring too is that this boost is usually filtered or denoised.

Thank you. Not sure why people don't understand this.

millky blacks?

Lot of building up RED cameras as some mythical creatures that behave differently than "other caneras". But no, many "other cameras" behave the same way too. When you change ISO, it doesn't change dynamic range any more or less than RED but change the distribution of stops. And CineEI on Sony FX3 or FX6 or even the high end Venice caneras is the same of what you discussed here. Despite them capable of capturing great lowlight images at 12,800 the cleanest if the shadows are at lower ISO and cleanes of the highlights are at higher ISOs. Lets not hype up RED to be working with some alien technology, Its the same sh*t as everyone else. RED's hype as a production cinema camera is dying and hence they target wannabes with Komodo and youtube community is doing the marketing for them by painting this camera more than what it is.

@nationalvideography2034

11 ай бұрын

I think the fact you are comparing it to a 100,000 dollar leading Hollywood production camera like the Venice says it all... also, just because Sony or other cameras have something similar doesn't demish it on the Red. I think there is not enough discussion on the implications of ISO across all brands.