Why is 4/3rds Base ISO 200?

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Terrible Photographer
Terrible Photographer Forum Member • Posts: 89
Why is 4/3rds Base ISO 200?
3

Why don’t these chips go to ISO 50 or even 25?

Think D810/850 with a Base ISO of 64 having similar DR and noise performance as the new 50MP medium format cameras!

It just seems so bizzare and archaic that the Base ISO of m43 is always 200. My Nikon D70 had a Base ISO of 200.

 Terrible Photographer's gear list:Terrible Photographer's gear list
Nikon D4 Nikon D810 Olympus OM-D E-M10 II Nikon AF-S Nikkor 24-70mm f/2.8G ED Nikon AF-S Nikkor 70-200mm f/2.8G ED VR II +9 more
Nikon D70 Nikon D810
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