Digital BW, The Print

Sounds like he's talking about bronzing, not metamerism. A profile using
only PK and LK would exhibit plenty of bronzing unless some kind of
coating was applied.

>> My limited experience when printing with Photo Black and Epson Pr. 
>> Luster using only the two blacks(QTR-warm) was heavy metamerism of 
>> the light black such that when viewed at an angle, the mid-tones 
>> looked etched.  So extreme, you will either hate it or love it.  I 
>> think there once existed some B&W traditional paper which gave a 
>> sort of silver and black look.  Reminds me of that look but with 
>> warm tones.

> Really? Well someone here is wrong...... I really can't see why there
> is no metamerism at all with matte black and qtr ( my experenece 
> with many color curve combinations) and severe color irregularities 
> with photo black. I'll find out soon. Anyone else like to weigh in?