[Leica] DxO, the M8 and dynamic range

[leica at web-options.com (Bob W)]

> I did locate the LFI discussion regarding 
> the non-linear
> way the sensor information is compressed into its 8 bit form 
> before later
> reconstruction.

Can you point me to it, please?

Thanks,
Bob 

> -----Original Message-----
> From: lug-bounces+leica=web-options.com@leica-users.org 
> [mailto:lug-bounces+leica=web-options.com@leica-users.org] On 
> Behalf Of Geoff Hopkinson
> Sent: 20 January 2009 11:56
> To: Leica Users Group
> Subject: Re: [Leica] DxO, the M8 and dynamic range
> 
> Don, thanks for your input there. I don't recall that 
> discussion on the
> sensor in detail. I have found the test site referred to by 
> Dante which is
> very interesting. I did locate the LFI discussion regarding 
> the non-linear
> way the sensor information is compressed into its 8 bit form 
> before later
> reconstruction. I won't pursue this longer on the list.
> Of course in all of this I was explaining a method that I 
> prefer rather than
> expecting to convert anyone else. The majority of folks look to be
> comfortable with the negative exposure adjustment method.
> The whole area is a complex one and we each place different weight on
> different attributes, I think. Noise in shadows being exacerbated by
> under-exposure is a big issue for me. Sometimes too simple assumptions
> regarding terminology differ too. For example 'over-exposure'
> Methods as well. I use Auto exposure but try to meter 
> carefully and then
> lock that reading and recompose (where practical and warranted).
>