Does this mean what I think it means?

[Patrice LACOUTURE (GMail)]

Adam Maas a écrit :
>  From the Pentax France Page:
>
> Le traitement interne des fichiers RAW permet d'agir sur la taille, la 
> compression, la balance des blancs, le réglage des ISO (Pentax est le 
> seul), le ton de l'image, la saturation, la netteté et le contraste.
>
> via Babelfish:
>
> The internal treatment of files RAW makes it possible to act on the 
> size, compression, the balance of the white, the adjustment of the ISO 
> (Pentax is only), the tone of the image, saturation, clearness and contrast.
>
> It sounds like ISO adjustment in post is possible with RAW files. That 
> would be an earth-shaking capability.
>
> -Adam
>
>
>   
Hi,

French is my mother tongue (as my name suggests), and I can say that the 
babelfish translation is accurate in saying that it is "possible to 
*act* on ... the ISO adjustment".

To my ears this means that the ISO can be somehow (?) set at 
post-processing.

How they achieve such a result while storing only the 12bits in the RAW 
file is still a mystery to me. I wouldn't say so if at least 4 more bits 
were stored into the RAW.

Otherwise, with a 12bit RAW, +1 EV push gives roughly 11 useful bits, +4 
EV (100->1600) gives only 8 useful bits => nothing I can't do with my 
*ist DS...

Patrice