Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@y..., "Tim Mimpriss" 
<tim.mimpriss@t...> wrote:
> Hi,
> 
> I am new to this group. I am an amateur photographer living in 
NorthWales,
> working in medium format, and scanning and printing both color and
> monochrome on inkjet printers.
> 
> I have been using Piezography inks for about a year but I now want 
to
> replace them as they tend to be rather warm on my usual papers and 
show
> marked metamerism. 

Snip)

> 3. Is there marked metamerism? I use long-life, high efficiency 
fluorescent
> lighting at home and this emphasises metamerism.

Tim,

There seems to be a great deal of variation in how people perceive 
metamerism with Piezo and with MIS VM. It seems that most people do 
no see at all. The amount also varies from paper to paper and from 
printer to printer.

Those of who do see a metamerism, Piezo looks slightly or strongly 
olive-green to yellow-green under tungsten light and shifts to warm 
neutral in daylight. MIS VM shifts in the opposite direction. It is 
neutral under tungsten and halogen lights and shifts towards a blue-
green in daylight.

Personally, I find the MIS VM metamerism less objectionable.

Martin Wesley


(snip)