Looking for Superblack

I have been struggling with creating a DYI calibration card for photographing art work. Not so much in the theoretical mainly in the practical aspect of getting a true black on the card. then Today's "Here's a Thought" podcast by Brooks Jensen was on the very relevant Three Kinds of Blacks.

... then it struck me my inkjet printer doesn't do super black! (it doesn't do CMYK all at once just K)

I'll discuss how this calibration card can be used in a future post.The card itself does appear true black here because it was created in sRGB colour space (and black set to R:0 G:0 & B:0) and that is the colour space of your browser/monitor

If you art interested in a more art and philosophic perspective on photography I can highly recommend Brook's Lensworks podcasts.