On Fri, Jul 12, 2013, Rob Z. Smith wrote: > From: Aahz Maruch [mailto:[email protected]] >> >> It's a little trickier than that because (per _Light: Science & >> Magic_), you do lose some detail when an exposure is shifted too far >> to the right (overexposure) even when there are no blown highlights > > This does sound just wrong. Could you post the reference so I can see > where that opinion comes from?
That reference is a book by Fil Hunter, Paul Fuqua, and Steven Biver (borrowed it from my local library, yours may have it, too). Quacking around for "camera sensor linearity", there are similar comments online: http://www.dpreview.com/glossary/camera-system/sensor-linearity http://harvestimaging.com/blog/?p=1154 http://kobus.ca/research/publications/02/camera_characterization/camera_characterization.pdf http://www.qsimaging.com/blog/?p=81 It makes sense if you think about it: the ADC is not going to be perfect, and it will be less perfect as you approach the ends of the dynamic range. -- Hugs and backrubs -- I break Rule 6 http://rule6.info/ <*> <*> <*> Help a hearing-impaired person: http://rule6.info/hearing.html ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users
