The benefits -may- come when you start manipulating the file. I've not tried
it, but it might reduce posterisation or some other artefacts that can
appear for example if you push curves too far. Has anyone quantified the
differences?
Hi Keith,
I did, as it happens (albeit rather unscientifically).
Two 8 bit images with black to white grad. Convert one to 16 bit, apply identical heavy curves to both, convert the 16 bit back to 8 bit and compare the histograms on both. The unconverted 8 bit has lost much more information and become much more "jaggy". So, as you say, if heavy curves etc are to be applied, the further loss of information could be reduced by converting into 16 bit first. You will, of course, never increase the amount of information originally present in the 8 bit image.
Kind regards,
Tim.
*********************************** Tim Ainsworth Photography Ltd, Manchester, UK. +44 (0)161 272 8885 http://www.timainsworth.com Member of The Association of Photographers http://www.the-aop.org
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