Archived posting to the Leica Users Group, 2013/06/23
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]ETTR works but only when the contrast range of the scene is less than the dynamic range of the sensor - according to Thomas Knoll according to Jeff Schewe in The Digital Negative. He says - "The concept of ETTR works only when ;you can increase the exposure (catch more photons) without sacrificing anything else in the image. It's not about overexposing but about properly exposing a capture to maximize the signal to noise ratio and improve your image quality." I think I'm going to give a talk on this at the Leica seminar in Wisconsin in October. Tina On Sun, Jun 23, 2013 at 6:28 PM, Bob Adler <rgacpa at gmail.com> wrote: > Agree. My default is to have EV set at -1/3. With some platforms you can > set what pure white is on the in camera histogram. True for the new M240. > Instead of clipping showing at 255/255/255 you can set it for 250 or 253 or > whatever. > > There was a big stink about ETTR (expose to the right) awhile ago started > by Michael Riechman and Co. I understood the logic and math, but many > people started exposing their histograms and highlights were blown. I > remember one fellow who was showing prints with totally blown cloud > centers. He thought his images were fantastic because he had more > information to work with because he had really exposed to the right... > > So rarely clip is my working mantra: only with bright reflections > intentionally. Shadows have tons more to recover... > > Sent from my iPad > > On Jun 22, 2013, at 9:46 PM, Mark Rabiner <mark at rabinergroup.com> wrote: > > > Yes and that's why if what I just clicked is something I really want to > have > > come out I check the back of the camera to make sure the high tones are > > fully there. Check the histogram even. If not I set the exposure over > ride > > down a bit more and click it again. > > If I click on something in which I totally don't care then maybe I wont > > check it as I'm walking away. And have regretted doing that. > > As why I'm I shooting it if I don't care? Best to trust our instincts > > I err on the side of under exposure for sure. > > Have great luck in bring up stuff out of the darks. Not the opposite.. > > > > > > On 6/22/13 11:52 PM, "John McMaster" <john at mcmaster.co.nz> wrote: > > > >> I am not disagreeing with you, but with colour digital it is unusual to > have > >> all three colours blown out so some recovery is possible. A blown > highlight on > >> a Monochrom is pure white with no tonal recovery, but I have not found > it a > >> huge issue in practice. > >> > >> john > >> > >>> -----Original Message----- > >>> > >>> Another thought which caught me on his thing is he says the camera is > not > >>> tolerant of over exposure. > >>> I'm wondering what camera was he using which WAS tolerant of over > >>> exposure? > >>> As as far as I know all digital cameras are very similar to shooting > slides. > >>> You don't over expose them. You place your high tones carefully and > let the > >>> dark tones fall where they may. > >>> A statement like "this camera is not tolerant of over exposure" makes > me > >>> thing this is not a guy who has gotten into digital really. > >>> I read him widely during the film era. I hope he's really making the > >>> transition. > >>> > >>> > >>> On 6/21/13 10:32 AM, "Tina Manley" <images at comporium.net> wrote: > >>> > >>>> Great review by Mason Resnick! I agree with almost everything he says > >>>> ;-) > >>>> > >>>> Tina > >>>> > >>>> > >>>> On Thu, Jun 20, 2013 at 11:24 PM, Greg Rubenstein <gcr910 at > >>>> gmail.com> > >>> wrote: > >>>> > >>>>> PDN finally got around to it, I guess. > >>>>> > >>>>> > >>>>> http://www.pdnonline.com/gear/Camera-Review-Leica- > >>> 8353.shtml?utm_sour > >>>>> ce=Silve > >>> rpop&utm_medium=email&utm_campaign=41858219&utm_term=96312&ut > >>> m_conten > >>>>> t= > >>>>> > >>>>> Greg Rubenstein > >> > >> _______________________________________________ > >> Leica Users Group. > >> See http://leica-users.org/mailman/listinfo/lug for more information > > > > > > > > > > -- > > Mark William Rabiner > > Photography > > http://gallery.leica-users.org/v/lugalrabs/ > > > > > > > > _______________________________________________ > > Leica Users Group. > > See http://leica-users.org/mailman/listinfo/lug for more information > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > > -- Tina Manley http://tina-manley.artistwebsites.com