[Leica] Unsworth w33/now expos comp M8

[leowesson at gmail.com (leo wesson)]

So if you convert the m8 dng to an adobe dng do you loose this quality?

Leo

On 9/12/07, Steve Unsworth <lug@steveunsworth.co.uk> wrote:
>
> Hi Tina
>
> What follows is a non-scientific of how the M8 records RAW files that will
> probably appal anyone with an insight into how these things actually work
> <grin>
>
> In a normal raw image the bits are assigned in a linear fashion. This
> means
> that if you under expose by a stop half the possible values are lost. With
> the M8 the values aren't assigned in a linear value. More of them are
> assigned to the shadows than the highlights, so when you underexpose with
> an
> M8 you aren't throwing away as many of the values, so it doesn't have the
> same effect as it does with a linear RAW file.
>
> I'm sure someone will correct me if this is incorrect <grin>
>
> Steve
>
>
> On 12/9/07 01:47, "Tina Manley" <images@comporium.net> wrote:
>
> > At 07:07 PM 9/11/2007, you wrote:
> >> So, when shooting the M8, err on the side of underexposure; if
> >> the historgram starts at 125 and goes to the left you still can have an
> >> outstanding image.
> >
> > But have you tried it the other way?  Supposedly the shadows will
> > have much less noise and the highlights that look blown are not
> > really if you expose so the histogram goes to the right.  I haven't
> > experimented enough to know yet, but I will.
>
>
>
>