I'm trying to use DNG profile editor to generate a camera profile for my new NEX-5R camera and I got some strange result, confusing
The camera profile generated by DNG PE have large errors. But there is a built-in NEX-5R profile in ACR, it works fine with small errors.
Take blue patch for example, ACR's built-in NEX-5R camera standard profile give me following reading in DNG PE:
While the DNG profile built by me using the chart function:
They differ a lot, and that explained why the generated dcp file does not work.
sRGB reference value for blue patch is 56,61,150, and the ACR built-in camera profile gives me exactly 56,61,150 on blue patch spot on, but the DNG profile built by me using the chart function gives me 0,46,142, out of gamut, it is not acceptable!
I guess that should has something to do with color space, since I'm using sRGB color space everywhere, but how could I correct the situation and generate the right color profile?