Archived posting to the Leica Users Group, 2009/08/13
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]For anyone interested. These three examples illustrate different colour rendition with different profiles in Adobe Camera Raw 5.4. LR 2.4 does the same. Target is Munsell Color x-rite mini Color Checker card, WhilBal card and a bit of my dealer's thumb. 2 out of 3 are industry standard. Light source measured with colour meter to close to 6500K, because that is how Adobe does it (for profiling). WB, exposure, develop settings all otherwise identical for comparison peurposes. Oriiginal conversion is to ProPhoto RGB which is vital if you want to avoid clipping the saturated colours that the sensor can capture. It is also close to the native internal colour space that LR2 for example, uses. Resized and converted to sRGB for web. Camera Standard means the DNG has been converted to simulate what Adobe thinks the camera's default jpg reproduction is. Adobe Standard means the current best profile provided by Adobe for that camera model (M8 in this case). DNG Profile Calibration means that the color checker target, as reproduced by this specific camera body has been analysed and calibrated by the DNG profile editor (free from Adobe) for the most accurate reproduction of the colour swatches. There is no one 'correct' rendition. It depends on purpose and preference, what you had for breakfast, the viewing conditions and probably the phase of the moon. The calibrated version is the most ACCURATE reproduction in that specific light which may or may not suit a specific purpose. http://gallery.leica-users.org/v/gh/te/M8CameraStandard.jpg.html http://gallery.leica-users.org/v/gh/te/M8AdobeStandard.jpg.html http://gallery.leica-users.org/v/gh/te/M8DNGProfileCalibrated.jpg.html -- Cheers Geoff Alles was eine gute Kamera braucht / Everything a good camera needs: http://gallery.leica-users.org/v/gh/ http://www.pbase.com/hoppyman