They sat on the shelves because everyone was parroting DP Review....had the 40D till about 9 months after the 50D came out,but we didn\'t see near the image quality after PP that the 50D was producing above 800 ISO...up to 800 ISO the 50D was churning out superior pics without any PP....so sold the 40D...my wife wanted to try the 40D again so we bought another,she found the same thing after PP above 800 ISO,the 50D had better image quality...so we sold the second 40D and got another 50D.
Norman Koren\'s excellent \"Imatest\" analysis program for quantitative, thoroughly objective analysis of digicam test images are far and away the best, most comprehensive analysis program to date.These analysis confirm the 50D is does indeed surpass the performance of the 40D,especially at base ISO settings.
The Canon 50D showed very good color accuracy, though with saturation levels a little higher than some competing models. Hue accuracy was very good, with only minor hue shifts occurring mainly in the oranges and reds. Average saturation was 109.7% (9.7% oversaturated) and average \"delta-C\" color error was only 4.55 after correction for saturation, which is very good. (Delta-C is the same as the more commonly referred to delta-E, but delta-C takes into account only color differences, ignoring luminance variation.) Over much of the spectrum, the 50D\'s default color rendering is quite faithful to the original, with accurate saturation levels. The only significant deviation is in warm-hued colors, most particularly reds, tapering off as you move through oranges to yellows. The color error plot has such a distinctive shape to it that we assume this must be the result of a deliberate engineering decision. Perhaps consumers judge the vibrancy of an image more by how bright the red through yellow colors are?
As is true of most DSLRs, when using the Adobe RGB color space (which provides a much wider gamut, or range of colors that can be expressed), the Canon 50D delivers more highly saturated color, with an average saturation of 114.8% and average saturation-corrected hue error of 5.86 \"delta-C\" units. The bias toward higher saturation in the warm-hued colors is even more apparent here, but what was a slight undersaturation of the cyan swatch in sRGB color space is now a noticeable desaturation in Adobe RGB.
Up to 800 ISO the 50D has marginally better ISO to noise performance,from 800 on to 1600 the 40D is superior to the 50D...PP negates this advantage at the upper ISO performance,besides 800 ISO and above is for trying to get an image....shooting at well below 800 ISO is usually required for the highest quality images.
BTW...the 40D had the same problem with the magenta cast as the 50D...the firmware update 1.0.7 corrected this issue with the 50D back in July of 09.
They sat on the shelves because everyone was parroting DP Review....had the 40D till about 9 months after the 50D came out,but we didn\'t see near the image quality after PP that the 50D was producing above 800 ISO...up to 800 ISO the 50D was churning out superior pics without any PP....so sold the 40D...my wife wanted to try the 40D again so we bought another,she found the same thing after PP above 800 ISO,the 50D had better image quality...so we sold the second 40D and got another 50D.
Norman Koren\'s excellent \"Imatest\" analysis program for quantitative, thoroughly objective analysis of digicam test images are far and away the best, most comprehensive analysis program to date.These analysis confirm the 50D is does indeed surpass the performance of the 40D,especially at base ISO settings.
The Canon 50D showed very good color accuracy, though with saturation levels a little higher than some competing models. Hue accuracy was very good, with only minor hue shifts occurring mainly in the oranges and reds. Average saturation was 109.7% (9.7% oversaturated) and average \"delta-C\" color error was only 4.55 after correction for saturation, which is very good. (Delta-C is the same as the more commonly referred to delta-E, but delta-C takes into account only color differences, ignoring luminance variation.) Over much of the spectrum, the 50D\'s default color rendering is quite faithful to the original, with accurate saturation levels. The only significant deviation is in warm-hued colors, most particularly reds, tapering off as you move through oranges to yellows. The color error plot has such a distinctive shape to it that we assume this must be the result of a deliberate engineering decision. Perhaps consumers judge the vibrancy of an image more by how bright the red through yellow colors are?
As is true of most DSLRs, when using the Adobe RGB color space (which provides a much wider gamut, or range of colors that can be expressed), the Canon 50D delivers more highly saturated color, with an average saturation of 114.8% and average saturation-corrected hue error of 5.86 \"delta-C\" units. The bias toward higher saturation in the warm-hued colors is even more apparent here, but what was a slight undersaturation of the cyan swatch in sRGB color space is now a noticeable desaturation in Adobe RGB.
Up to 800 ISO the 50D has marginally better ISO to noise performance,from 800 on to 1600 the 40D is superior to the 50D...PP negates this advantage at the upper ISO performance,besides 800 ISO and above is for trying to get an image....shooting at well below 800 ISO is usually required for the highest quality images.
BTW...the 40D had the same problem with the magenta cast as the 50D...the firmware update 1.0.7 corrected this issue with the 50D.
They sat on the shelves because everyone was parroting DP Review....had the 40D till about 9 months after the 50D came out,but we didn\'t see near the image quality after PP that the 50D was producing above 800 ISO...up to 800 ISO the 50D was churning out superior pics without any PP....so sold the 40D...my wife wanted to try the 40D again so we bought another,she found the same thing after PP above 800 ISO,the 50D had better image quality...so we sold the second 40D and got another 50D.
Norman Koren\'s excellent \"Imatest\" analysis program for quantitative, thoroughly objective analysis of digicam test images are far and away the best, most comprehensive analysis program to date.These analysis confirm the 50D is does indeed surpass the performance of the 40D,especially at base ISO settings.
The Canon 50D showed very good color accuracy, though with saturation levels a little higher than some competing models. Hue accuracy was very good, with only minor hue shifts occurring mainly in the oranges and reds. Average saturation was 109.7% (9.7% oversaturated) and average \"delta-C\" color error was only 4.55 after correction for saturation, which is very good. (Delta-C is the same as the more commonly referred to delta-E, but delta-C takes into account only color differences, ignoring luminance variation.) Over much of the spectrum, the 50D\'s default color rendering is quite faithful to the original, with accurate saturation levels. The only significant deviation is in warm-hued colors, most particularly reds, tapering off as you move through oranges to yellows. The color error plot has such a distinctive shape to it that we assume this must be the result of a deliberate engineering decision. Perhaps consumers judge the vibrancy of an image more by how bright the red through yellow colors are?
As is true of most DSLRs, when using the Adobe RGB color space (which provides a much wider gamut, or range of colors that can be expressed), the Canon 50D delivers more highly saturated color, with an average saturation of 114.8% and average saturation-corrected hue error of 5.86 \"delta-C\" units. The bias toward higher saturation in the warm-hued colors is even more apparent here, but what was a slight undersaturation of the cyan swatch in sRGB color space is now a noticeable desaturation in Adobe RGB.
Up to 800 ISO the 50D has marginally better ISO to noise performance,from 800 on to 1600 the 40D is superior to the 50D...PP negates this advantage at the upper ISO performance,besides 800 ISO and above is for trying to get an image....shooting at well below 800 ISO is usually required for the highest quality images.
Feb 14, 2011 at 08:15 PM
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