On Fri, Jul 12, 2013, Chris Siebenmann wrote: > > There are some ferociously technical people who hang around > dpreview.com's forums (they get into very low-level analysis of sensor > performance, including for astrophotography). I've never seen them > discuss any evidence that camera ADCs are at all non-linear in general > at either end of the dynamic range.
Finally got around to doing more research, helped by discovering "ETTR" as a search term. You're right, most of the "non-linearity" stuff predates 2008 and almost all predates 2010. I did find a couple of interesting and recent posts that might explain why there's so little recent: http://www.johnshawphoto.com/ettr-to-the-far-right/ http://forums.popphoto.com/showthread.php?626490-Tips&s=3ae79e117c07f306f5e72899eb4a9ce0&p=726079&viewfull=1#post726079 Basically, it appears that most cameras these days are conservative in displaying histograms, so if you avoid clipping there you're probably staying in the linear zone. -- 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
