Archived posting to the Leica Users Group, 2009/01/14
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]And also, as you mention the highlight clipping is possibly based on
the jpegs (I haven't seen documentation on that), but using the
'recovery' slider in Lightroom or similar tools does not necessarily
produce linear effects in the highlights, and some of that
non-linearity is impossilbe to correct. As I've mentioned before,
I've had a lot better experience in underexposing M8 files and using
software to bring the values up with M8 files than other,
specifically Canon and Nikon raw files. M8 files give me more
problems when overexposed than those others, though.
At 10:55 PM -0800 1/14/09, Richard Man wrote:
>The "School of Thought" is that especially if you shoot RAW, for most
>digital cameras, it's a lot easier to recover shadow, but highlight is less
>recoverable. So it's an insurance type of thing. Keep in mind that sensors
>are not linear, but then again, neither are film.
>
>
>
>On Wed, Jan 14, 2009 at 10:24 PM, Geoff Hopkinson
><hoppyman@bigpond.net.au>wrote:
>
>> Here we go, the discussion starts again now ;-)
>> I'm of the 'do not routinely underexpose' school. I think I am a school
>> of
>> one here.
>> I try to keep as many of the highlight tones as possible. When the linear
>> capture is adjusted by the gamma curve to approximate human vision, some
>> of
>> those tones are pushed down into the mid-tones and darks. Remember that
>> half
>> of all the possible tones are used to represent the first (brightest)
>> stop
>> of your dynamic range. The more tones you start with the better for
>> maximum
>> possible quality. Also my experience has been that under-exposure can
>> make
>> for more noise in the shadows, especially with higher ISOs.
>> Lots of people here will prove to you that -1/3 or more will still give
>> you
>> great results. I respect all of their opinions and experience. I like to
>> start with the biggest possible tonal range in the DNG. Remember that the
>> clipping warning on your camera LCD is only an approximation based on the
>> jpg settings.
>>
>>
>--
>// richard m: richard @imagecraft.com
>// b: http://rfman.wordpress.com
>
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* Henning J. Wulff
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