Archived posting to the Leica Users Group, 2003/06/17
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Martin You are correct. I cannot understand how a sophisticated, experienced photographer could ask that question. Jerry Martin Howard wrote: > Slobodan Dimitrov wrote: > > > Anyone know what adjustments in PS, or any other software, can be used > > to turn an image taken with ortho film into one that simulates the > > tonality of pan-chromatic emulsions? > > If I understand correctly, orthochromatic film captures less spectral > range than does panchromatic film. Since PS can only work with what > you give it, short of "inventing" new pixels, I don't see how ANY > manipulations in PS could turn orthochromatic images into panchromatic > images, because you don't know the reflective properties of the objects > in the scene with regard to the range of frequencies that the ortho > hasn't captured. While you might be able to make some educated > guesses, and locally adjust contrast accordlingly, I doubt you'd be > able to results which are "the same". > > M. > > -- > To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html