ISO is totally FAKE

[Nikonmike]

https://www.youtube.com/watch?v=QVuI89YWAsw

 

 

[Clicker]

I really rate Tony. Northrop.. followed his tutorials for  a long  time ... a very interesting video Mike ...thanks for sharing ....

[FUJI]

An extremely interesting video.....thank you for sharing...

FUJI

[Nikonmike]

I understood totally the ISO invariance thing but chose to ignore it as i like to chimp my images, what surprised me was the inconsistency of the ISO values between different manufacturers, we know now why one ISO 100 is better than another.  

[Guest]

Yawn. Why did he not save 10 minutes and just say "Get to know your camera."

Edited February 20, 2019 by Bill
Expand reply.

[johntwo]

8 minutes ago, Bill said:

Yawn. Why did he not save 10 minutes and just say "Get to know your camera."

 

[Nikonmike]

1 hour ago, Bill said:

Yawn. Why did he not save 10 minutes and just say "Get to know your camera."

 

1 hour ago, johntwo said:

I think he didn't say get to know your camera because that was not the point he was trying to make.

I took the main thrust of the video to be saying because different manufacturers assigned different amounts of gain to given iso values it made the values pointless when comparing one make/model to another.

If i was looking to upgrade a camera body one aspect i may look at is how the sensor handles noise at a given iso, now if camera A gives certain results at iso 3200 and i see camera tests and forum posted images from camera B that match it for noise but at 6400 then i may be tempted to buy B.

He was saying if you stop talking iso and use gain from the sensor's base iso  the fudging of facts may not be as easy to hide, it only makes sense if you accept the light sensitivity of a sensor never changes, the increase only comes from manipulation of the original exposure.

[Guest]

19 minutes ago, Nikonmike said:

 

I think he didn't say get to know your camera because that was not the point he was trying to make.

I took the main thrust of the video to be saying because different manufacturers assigned different amounts of gain to given iso values it made the values pointless when comparing one make/model to another.

If i was looking to upgrade a camera body one aspect i may look at is how the sensor handles noise at a given iso, now if camera A gives certain results at iso 3200 and i see camera tests and forum posted images from camera B that match it for noise but at 6400 then i may be tempted to buy B.

He was saying if you stop talking iso and use gain from the sensor's base iso  the fudging of facts may not be as easy to hide, it only makes sense if you accept the light sensitivity of a sensor never changes, the increase only comes from manipulation of the original exposure.

Succinctly put, so he could have said that instead and saved us all a lot of time. My point was why use 10 words (minutes) when one would do. Self aggrandisement i suspect.