Discovering the SD15...

xpatUSA wrote:

Roland Karlsson wrote: I am only talking abot flower photography. So, show me some (brightly colored) flower photos (that not are manually corrected) that contains green, naturally looking healthy grass.

I will, this very day. Natural-looking healthy grass is hard to find around here but we've had some rain lately

I'm hoping we will not need spectrometer readings to complete this sub-discussion. I'll use a DP1s instead for comparison. Might provide Some Chroma numbers too. They would be a little more convincing that words like "greener", eh?

Well, I found some lantana camara in front of the shack, with leaves and a bit of grass:

There is very little difference between the DP1s and the SD14, so this comparison would have proved nothing much, if I had not included the card. Fortunately, the card comes with a leaflet which lists the L*a*b* color values for each patch.

Anyone not familiar with the CIELAB color space and the meaning of chroma as it relates to saturating can stop reading here.

Using Bruce's CIE calculator , the green patch's L*a*b* values give a CIELAB chroma of 50 and a hue of 141 degrees. The same calculator can be used to convert SPP's color-picker RGB values (sRGB working space) into chroma and hue. I estimated the lighting as D55 (diffusing clear plastic roof under part sunlight).

Comparing chroma and hue angle:

Card: 50 & 141°

SD14: 62 & 128°

As we can easily see, the chroma for green from an unadjusted SD14 is more than it should be, which proves to me that the SD14 does not shoot under-saturated greens, in spite of Roland's claim.