04-11-2012, 06:22 AM
[quote name='wim' timestamp='1334082333' post='17424']
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From that POV it is possible to get 15-16 stops in print, but all it means that one can compress the tonal scale enough to display fully within 5 stops. In a way, one could see this as single shot HDR <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/biggrin.gif' class='bbc_emoticon' alt='
' />. Not entirely, but close enough... <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/biggrin.gif' class='bbc_emoticon' alt='' />. And this works well in B&W, not so with colour negatives or slides.
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[/quote]
The last issue of c't photography mentiones about an HDR technique which includes converting the raw images to 32bit, then apply tone mapping (tonal compression) and then convert back to 16bit. I think the clever algorithms of tone mapping (and 16 bit conversion) should be doing a good job with that regard.
I believe localized shadow/highlight protection techniques look somehow more realistic than HDR... At least compared to the HDR technique I applied so far <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/smile.gif' class='bbc_emoticon' alt='
' />...
...
From that POV it is possible to get 15-16 stops in print, but all it means that one can compress the tonal scale enough to display fully within 5 stops. In a way, one could see this as single shot HDR <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/biggrin.gif' class='bbc_emoticon' alt='
' />. Not entirely, but close enough... <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/biggrin.gif' class='bbc_emoticon' alt='' />. And this works well in B&W, not so with colour negatives or slides....
[/quote]
The last issue of c't photography mentiones about an HDR technique which includes converting the raw images to 32bit, then apply tone mapping (tonal compression) and then convert back to 16bit. I think the clever algorithms of tone mapping (and 16 bit conversion) should be doing a good job with that regard.
I believe localized shadow/highlight protection techniques look somehow more realistic than HDR... At least compared to the HDR technique I applied so far <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/smile.gif' class='bbc_emoticon' alt='
' />...