Hi,
Purple and violet shades are really nearly impossible to match in any photographic medium--film or digital.

This was explored at some length at a couple of Kodak color seminars I attended some time ago. A skilled artist in oils can come fairly close, but not spot on. It cannot be matched using only RGB (Positive) or CMYK (Subtractive) colors.

Drew,

It doesn't look like people are beating in the door to participate in this discussion. I have tried to find technical reviews of this plug-in, but wasn't successful. It seems to a great extent that we are to believe Tribeca on their word. It bothers me that it is claimed that this plug in works for all digital cameras, which would imply that all digital sensors are created equally. I have a hard time believing that.

My biggest problem with purple is in the area of monitor to print matching. An image of purple gentian flowers made me realize years ago that there was a BIG problem; the gentians on the monitor looked way to purplish as compared to my print. After much trial and error and reading up on the subject of color science, I now believe that the lighting you use to view your prints (color spectrum purity , color temperature and brightness) and your monitor color temperature, gamma and brightness have an enormous impact on monitor to print matching, especially for purple.

Frans Waterlander
pixographer

I have found that the soft, almost powdery blue of morning glories a difficult film, slide or print, to capture. I have yet to try it digitally.

My beautiful blue flowers always have a tendency to creep or leap toward a magenta hue when capturing on slide film. I've been told by a couple of professional nature photographers to shoot blue flowers in open shade when the sky is a clear blue for a more desirable outcome.

According to an older book I have by flower photographer Derek Fell, (How to Photograph Flowers Plants and Landscapes by HPBooks. Author Derek Fell) using a haze filter (#2B), or shooting in the shade is the best way to counter act this effect. (He call it the "ageratum effect, which is a fancy way to say "anomalous reflectance"...) Now I don't know if these ideas would work with digital, but it seems to me that it would.

kdparnell