The Exposure Triangle Is Misleading And Unnecessary.

It's kind of like walking into a hospital and noticing that there are a lot of sick people there and saying "hospitals make people sick."

Yes, but unfortunately they are not alone.

Another myth I was mislead by is "higher iso causes more noise".

It actually causes less noise because of the lower exposure* but more of that noise will be visible.

You mean it will be visible in the actual image? Imagine that! Photographers actually delivering actual images with or without noise rather than typing flurf here.

I'm just explaining why iso does not cause more noise as many beginners are mislead into believing.

It is totally appropriate to do that in a beginners environment.

Wait a second…. You can’t have it both ways…… speaking of the final finished image here (which really is the only thing that creatives like photographers should care about)…..

What is true for a beginner to know about the final image:

Option1 (your direct quote):
Another myth I was mislead by is "higher iso causes more noise". It actually causes less noise because of the lower exposure* but more of that noise will be visible.

Or

Option 2 (direct quote):
I'm just explaining why iso does not cause more noise as many beginners are mislead into believing.

Just asking because any beginner might now be very confused when they pick up a camera with the goal of actually creating a finished image. If they dial up ISO and leave other settings the same, will the finished image have more or less visible noise?

Do beginners need more than: Noise is function of light on the sensor. The ISO setting does not affect noise unless you're in an automatic mode in which the ISO setting affects the shutter speed or aperture.

However, if the beginner believes high ISO equals high noise, they need more to disabuse them of the notion, which this thread helps to do.

A discussion of more noise versus more visible noise, SNR, etc. doesn't seem necessary for a beginner, unless they evidence interest.

I have strayed off topic from my op by explaining how higher iso causes less noise and not more noise. Higher ISO increases noise visibility - noisiness.

If anyone would like to discuss in more detail perhaps start a new thread on the relationship between iso and noise.

AFAIK, a higher ISO does not increase noise visibility. It may even decrease it as long as it does not modify exposure.

If you read back through my posts you will see I was talking about when the exposure* is lowered.

You could simplify things by remembering the Sunny 16 Rule from film days for setting exposure SS = 1/ASA( or ISO) with an aperature setting of F/16 …. digital ISO is usually interpreted the same way we did in film days .. And the higher the ASA the larger the film grain! .. usually … I personally return to Freeman or Peterson when I become confused or want to know more about exposure ..

WhyNot

Most of this thread is a joke (thanks for the entertainment so far).

Why explain a concept with a triangle which every child has to learn at school (don’t tell my you forgot about Pythagoras) when you can model it as multiple bidirectional relationships which need to be gobbled together to make sense at all?

This is a generational issue, not a photographic one.

Old farts who grew up on film still carry that anxiety with them, and they were so restricted by using film with a set ISO value that they are still jealous about easily bumping up the ADC. As film was not practically exchangeable between each exposure it wasn’t that relevant.

Young shits couldn’t care less about these facts, and just carelessly move on with their lives while they are happily exposing. They disrespect the previous definitions while inventing new ones which are based on false assumptions, and still need to be ironed out, with an uncertain outcome.

It’s always two steps forward, one step back (except in photography where you would have an unsharp image with that technique without refocusing).

So far I’ve seen two arguments basically repeating the same thing over and over again.

I hope you realize that you are talking about different things: exposure and appropriate exposure.

And now please don’t let me start to talk about trap rappers exposing themselves.

I see Sunny 16 as a guide at best for nice looking sooc jpegs.

To optimise the exposure ** when shooting raw Sunny 16 will not work.

Do they actually say that?

Many did.

I am obviously still a beginner since I have no idea what this thread is about, lol.

If Nikon engineers did not grasp these concepts they would not be able to design pretty decent cameras :-)
There are design engineers and application engineers who wright these wonderful notes. Good application engineers sometimes talk to design engineers. The ones that don't, believe that that understand everything...

i like that "exposure and appropriate exposure"

Those articles are typically written by product managers, not by engineers.