Hmm? Depending on what you want, of course... but if you meter the snow, you need to overexpose to have it become white. If you meter against a grey card, you'd get proper exposure.
But again, that depends on what kind of picture you're looking for. In message <54a9f4ae.6070...@cox.net> on Sun, 04 Jan 2015 18:19:26 -0800, john <w...@cox.net> said: wub> On 01/04/2015 03:05 PM, Jim Coleman wrote: wub> wub> I haven't taken snow pictures since the old film days, but I believe you may have meant wub> "underexpose" not overexpose. It's been decades, but I feel that the amount of underexposure wub> required was substantial, if I wanted to be able to see footprints and other snow surface details wub> - 4 or 5 stops relative to a light meter reading from a neutral gray card? wub> wub> -John Hill wub> wub> Date: Sun, 4 Jan 2015 18:04:44 -0500 wub> From: James <midnightcomman...@gmail.com> wub> Subject: Re: [Darktable-users] How do people process pictures with wub> lots of snow? wub> To: Chris Siebenmann <c...@cs.toronto.edu> wub> Cc: darktable-users <darktable-users@lists.sourceforge.net> wub> Message-ID: wub> <ca+zvbs3snonw6e1d78munj95cmzz6isf5uv85cmoqr++7th...@mail.gmail.com> wub> Content-Type: text/plain; charset="utf-8" wub> wub> I've found I've had the most success with snow (or anything much brighter wub> than neutral grey) by overexposing and and bracketing. Makes post-exposure wub> processing much easier. wub> wub> Jim Coleman wub> Upsala '75 wub> http://www.linkedin.com/in/jamescoleman wub> http://www.flickr.com/photos/jecoleman/sets wub> <http://www.flickr.com/photos/jecoleman> wub> wub> On Sun, Jan 4, 2015 at 5:56 PM, Chris Siebenmann <c...@cs.toronto.edu> wrote: wub> wub> > What I've found over time is that pictures with significant amounts wub> > of snow in them are my nemesis as far as getting things to look right wub> > in processing, and now I'm wondering if other darktable users have any wub> > particular tricks or ideas. wub> wub> > In real life, snow around here typically registers to my eyes as both wub> > fairly bright white and having plenty of details (often both large wub> > scale, such as footprints, and small scale texture and so on). But when wub> > I process my pictures, I'm almost never successfull at getting the snow wub> > bright enough that it feels white and like *snow* while preserving wub> > detail and texture in it. If I get it bright enough that it looks like wub> > snow, the details vanish (even if I try relatively strained processing wub> > in eg the zone module); if I prioritize trying to preserve details, wub> > generally the snow comes out looking grey and wrong and not infrequently wub> > the details don't separate anyways. wub> wub> > So: do people have tricks they use when processing snow pictures? wub> > Should I be looking at eg the equalizer module and its clarity preset to wub> > really exaggerate contrast edges in my snow pictures? wub> wub> > Thanks in advance for any advice, hints, etc. wub> wub> > - cks wub> wub> > ------------------------------------------------------------------------------ wub> > Dive into the World of Parallel Programming! The Go Parallel Website, wub> > sponsored by Intel and developed in partnership with Slashdot Media, is wub> > your wub> > hub for all things parallel software development, from weekly thought wub> > leadership blogs to news, videos, case studies, tutorials and more. Take a wub> > look and join the conversation now. http://goparallel.sourceforge.net wub> > _______________________________________________ wub> > Darktable-users mailing list wub> > Darktable-users@lists.sourceforge.net wub> > https://lists.sourceforge.net/lists/listinfo/darktable-users ------------------------------------------------------------------------------ Dive into the World of Parallel Programming! The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net _______________________________________________ Darktable-users mailing list Darktable-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/darktable-users
