How Dual Native ISO Works #shorts

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On professional shoots we adjust ISO in camera fairly regularly, not by much, usually just 2 or 3 steps up. The adjustment is only done to help visual a final product while working and keep the directors, producers, or clients comfortable.

godothunder
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ISO *never* changes the sensitivity.
The sensitivity of a sensor cannot be changed. ISO is always a signal amplification, one part digital one part analog.

TheTempic
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iso does change the dynamic range. for blackamgic pocket in the first iso range, iso 100 is better for shadow detail and iso 800 is actual better for highlight detail

Sundirre
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So really if your shot is too dark, rather than altering the ISO. It’s better to adjust aperture and shutter angle? 🤔

I’m a novice film maker who’s make a couple short films and slowly learnt stuff as I shoot.

However the thing I feel least comfortable with is knowing which to adjust out of the three when it comes to exposure at any given moment.

Cause I also understand to adjust the shutter angle can also adjust motion blur. So surely the only thing to adjust unless in low light situations, is the aperture for more light?

HudsonMedia
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It's sorts like this that make me lose hope in modern internet creators.
You started it off great but then for some reason you decided that you don't need to mention dynamic range or the fact that YOU CANNOT PULL INFINITE DETAIL OUT OF SHADOWS OR HIGHLIGHTS IN POST AND YOU ABSOLUTELY NEED TO USE HIGHER ISOS FOR SOME SCENARIOS OR YOU'LL HAVE NO RECOVERABLE INFORMATION RAW OR NOT I hope all that internet shouting put my point across. ISO is a very important setting and it decides the data you're getting right off the bat. If camera sensors were able to pull infinite data in either direction then yes, you wouldn't need to change your ISO on dual gain cameras or even regular ones, but what are you going to do if both ISOs cause overexposure / underexposure issues? You cannot pull anything out of a source in post, they're there for a reason. You cannot abuse shutter speed infinitely with infinite amount of magic stabilization either, just in case you were under that impression.

Saying the ISO setting does "nothing" is like saying chocolate doesn't include sugar, such a baffling statement. All you need to say for dual iso cameras is that you can stop worrying about cranking up your iso and you can jump a few steps forward while lowering shutter speed instead in low light scenarios to hit that sweet spot.

anecro
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For me that's the aperture dial 😊

HelamanGile
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From what I’ve heard a good rule of thumb is just try to keep the ISO at the camera lowest “natural” setting. For my camera the ISO can go down to 50 but then it’s artificial the lowest “natural” setting is 100 on my Sony a6700. I only use ISO if I absolutely have to

gregamericano
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I keep getting New Zealand creators on my fyp and I’m not even mad tbh

SoggyChildEater.
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Okay, this is the first video that's started to get me to understand dual native iso, but I still don't understand this: you said any image taken outside of the two native isos is just having a digital boost applied, but then you say in low light to shoot in whatever iso looks best. If they are just getting a digital boost, wouldn't it be better to just shoot in the higher native iso so that you know you're getting quality detail in the shadows and not losing anything?

DanielCrist
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i think noise gives more vibe for the image

ShlomoRaz
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Didn't know that, so why do photographers say that increasing exposure in post brings moreel noise than doing it directyl in camera?

raphi
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So don't increase the Iso right ?
Because I got lost at the last part

Vineethajojo
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The fuck’s he assuming all cameras have a designated ISO wheel at that spot?

VariTimo
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This is blatantly wrong. A camera sensor captures a digital value for every pixel. A voltage, for example. This runs then through an analog amplifier, where it is… amplified. Then it is translated into digital values using an ADC, and after that it is processed further by the camera. The important part is that that first amplifier is analog.

The ISO setting is applied at the point BEFORE the ADC. And you simply cannot replicate that using software, because at that point, the signal has been converted to a digital one. And regarding that dual native ISO: That just comes down to your cameras sensor having two different sets of amplifiers with different properties.

nanolog
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This is wrong. Adjusting exposition in post will introduce more noise and color distortion to footage than im case of adjusting iso in camera.
If you shoot raw - maybe he is right, but I am not sure. But definitely, from my experience adjusting ISO is better than recovering an overexposed or underexposed file.

iustitiaepervenit
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I mean, I find with my Nikon d3200 that it's actually better to underexpose and to bring it up rather than the other way around...

skeleton_craftGaming
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Plenty of dual native iso cameras use analog gain...

hufman
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nah, this is the aperture wheel on my camera

boahneelassmal
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Great short, should be way bigger

Too bad about ISO.

Muchoman
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Which is the song or music in the background? It’s great

rishabhjain