Thanks - I had imagined it had been shot at ISO 8k and the data mistyped.
I don’t think even my x10 (tiny sensor and aged 6 or 7) is as noisy at 8
hundred…
Amities
Philippe
> Le 3 nov. 2019 à 16:32, Wayne Shumaker <om3ti@xxxxxxxx> a écrit :
>
> At 11/3/2019 01:55 AM, Philippe wrote:
>
>> How do you get that amount of noise at ISO 800 ?
>>
>> Should be clean from the start on a Sony, should it not?
>>
>> Amities
>>
>> Philippe
>
> It was shot at -1EV, and boosted in ACR by +2EV, not to mention boosting the
> blacks (ACR shadows +80, blacks +50). Not sure how those numbers translate
> into extra EV boosting. The images were quite dark unprocessed. Sony tends to
> optimize for highlights vs Nikon for shadows.
>
> Clearly if I shot at 0EV with longer shutter it would also have less noise.
>
> Interesting comparison:
> https://www.dpreview.com/news/4302149407/sony-a7r-iii-dynamic-range-improved-nearly-matches-chart-topping-nikon-d850
>
> Sometimes I get lost in the numbers, so real world examples are better. With
> the Denoise programs and Sharpening programs, the final result can defy lens
> resolution and camera noise performance.
>
> WayneS
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