Best low light FF Canon DSLR

Started 3 months ago | Discussions thread
Mako2011
MOD Mako2011 Forum Pro • Posts: 26,021
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Dr_Jon wrote:

Mako2011 wrote:

Dr_Jon wrote:

Mako2011 wrote:

It never changes the amount of light you can collect. As an example....blank wall lit by constant artificial light. Set camera on tripod at f2 and 1/60s in MANUAL EXPOSURE mode. Notice that regardless of what ISO setting you select...the sensor never captures more or less light. How the resulting image looks may change...but the amount of light captured by the sensor never ever does. The ISO setting has no effect on the Full Well Capacity nor the min charge an individual pixel can hold

I think my view is the more useful one here,

The original view/statement, "ISO affected amount of light collected", was not accurate though and could lead many astray.

..as while ISO doesn't change the amount of light the sensor collects

And that's a big 180 from your original premise. And leads to much more useful theory. Glad you see the "Light". It helps others.

And don't forget, sometimes a change in ISO results in nothing more than the camera processing engine raising or lowering the brightness setting...a pure digital only manipulation that could be done just as well had one used Light Room to change "ISO"

No, sorry, I'm sticking with my original premise.

So above you say "ISO doesn't change the amount of light the sensor collects"...

and now you are saying "ISO does change the amount of light the sensor collect"?

As ISO increases you capture less light in the Real World.

No....A factually inaccurate statement. Try it. Blank wall lit by constant artificial light. Set camera on tripod at f2 and 1/60s in MANUAL EXPOSURE mode (Shoot RAW). Notice that regardless of what ISO setting you select...the sensor never captures more or less light. You can open the files in RawDigger and confirm the amount of light captured did not changes you increase ISO setting

The fact that the sensor captures the same amount of light is irrelevant as there is no way to access that data. So it's no use to anyone.

Not true....Many of use often shoot RAW in an ISO-less ETTR workflow (often using UniWB) from time to time. Pretty easy to access all the data

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My opinions are my own and not those of DPR or its administration. They carry no 'special' value (except to me and Lacie of course)

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