Lab value for Shiny black?

[charles beasley]

Michael-You probably have it listed somewhere, but i haven't found it-
what is the measured Lab value for the shiny black patch?

While I'm at it, why not also add a shiny white to represent spectral highlights?

[MichaelT]

Lab values for Blackpoint Sticker

L* = 4 to 6.5 Typical is ~5
a* and b* channels same as gray between -1 and +1, but typical is +.5 to -.5 in both channels.

As a point of reference the Gretag Macbeth Black is typical:
L* = ~21


I am still working to develop the appropriate White Sticker and also some other cool stuff.

[charles beasley]

Thanks Michael for the balck vaue and glad to hear a white sticker is in the works.