Am I oversharpening
in [Digital Cameras]
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From: Ben Cramer on 30 May 2005 05:26 Not at all. "Celtic Boar" <extraneous(a)charter.net> wrote in message news:PUsme.17445$cP2.6248(a)fe06.lga... > Please take a look at the attached link. I am still trying to get the hang > of this Unsharp Mask Thing. Are these oversharpened. > > Canon 20D - Raw - 75-300 IS Zoom > > Thanks. > > http://spaces.msn.com/members/fleetingglimpse/PersonalSpace.aspx?_c11_PhotoAlbum_spaHandler=TWljcm9zb2Z0LlNwYWNlcy5XZWIuUGFydHMuUGhvdG9BbGJ1bS5GdWxsTW9kZUNvbnRyb2xsZXI%24&_c11_PhotoAlbum_spaFolderID=cns!1pioagCJB9TmXNBFRp_AlULA!741&_c=PhotoAlbum > > ~Rikk > > website: www.fleetingglimpse.com > blog: http://spaces.msn.com/members/fleetingglmpse/ >
From: Marvin on 30 May 2005 10:07 Celtic Boar wrote: > No, I sharpened them last step. > > I am a film photog learning the digital game. When I compare the RAW files > saved as TIFF to my processed files, the processed files look unreal. Too > sharp. Maybe I am seeing it backwards and the Raw is too soft. > > Thanks. > > AS someone else said, it is hard to tell from the low-resolution pix that you posted. It would be better if you showed a critical part of the image at higher resolution. I find that almost any digital camera shot or scanned photo benefits from one step of sharpening, and it is not always the unsharp mask that works best. A second step of sharpening may make it noticably worse. It depends on the nature of the photo, and your judgment. One of the nice things about digital darkroom work is the ease and inexpensiveness of backing off from an unsatisfactory result. I use Paint Shop Pro, and save photos in the PSP format as I go through the editing process, so that I can always go back several steps, even if I pick up the process a day or more later.
From: george_preddy on 30 May 2005 10:16 Celtic Boar wrote: > Please take a look at the attached link. I am still trying to get the hang > of this Unsharp Mask Thing. Are these oversharpened. > > Canon 20D - Raw - 75-300 IS Zoom > > Thanks. I couldn't find any oringals there so there is no way to evaluate the images for sharpness. In general, if you are sharpening at all then you are oversharpening. Global digital sharpening tends to flatten or even invert the 3D nature of an image, since contrast is strengthened pixel by pixel, without regard to subject depth or the optics at play. The picture has to be really soft or taken OOF to get benefits of digital sharpening above the cost watermarking the image "from digital."
From: C Wright on 30 May 2005 11:02 On 5/30/05 9:16 AM, in article 1117462598.038828.135100(a)g44g2000cwa.googlegroups.com, "george_preddy(a)yahoo.com" <george_preddy(a)yahoo.com> wrote: > > > Celtic Boar wrote: >> Please take a look at the attached link. I am still trying to get the hang >> of this Unsharp Mask Thing. Are these oversharpened. >> >> Canon 20D - Raw - 75-300 IS Zoom >> >> Thanks. > > I couldn't find any oringals there so there is no way to evaluate the > images for sharpness. In general, if you are sharpening at all then > you are oversharpening. > > Global digital sharpening tends to flatten or even invert the 3D nature > of an image, since contrast is strengthened pixel by pixel, without > regard to subject depth or the optics at play. The picture has to be > really soft or taken OOF to get benefits of digital sharpening above > the cost watermarking the image "from digital." > Considering your reputation in this group I hesitate to reply at all but for the sake of potential newer dlsr users I can't let this statement stand! Unless someone has optional in-camera sharpness cranked way up dlsr's are noted for producing soft images - this is by the manufacturer's design. Most all advanced amateurs and pros prefer it this way and will use some sort of post processing program and either leave their images soft or sharpen as desired. Many, many images benefit from sharpening and to say that "In general, if you are sharpening at all then your are oversharpening." is just plain wrong! As far as the rest of your statement about sharpening tending to tending to "flatten" or "invert the 3D nature" of an image - huh!
From: Stacey on 30 May 2005 13:32
C Wright wrote: > Many, many images benefit from sharpening and to say > that "In general, if you are sharpening at all then your are > oversharpening." is just plain wrong! As far as the rest of your > statement about sharpening tending to tending to "flatten" or "invert the > 3D nature" of an image - huh! Ditto, george is clueless once again about anything related to photography, nice post.. -- Stacey |