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Digital BW, The Print

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Re: [Digital BW] Black Density measurement

2005-10-30 by Tony Riley

Thanks both to you and John Moody for setting me off on the right path.
I have the Eye1 Pro and am using the Eye1 Share package to measure colour
patches but it is inevitably a long learning curve from producing working
profiles to understanding exactly what is going on "under the bonnet".

The reason for my request was that I am testing various papers to see which
give the richest(most dense) black. I am quite surprised at the range and
just how poor even some gloss papers are at good black reproduction.

Given that there is a fairly constant translation formula between L* and
Density why is D considered preferable to L as a unit of definition?

Any good books out there that might make a good read in the bath? <grin>

TonyR

 

Steve Kale kindly volunteered:
> Anyway Tony I gave you the longer version because I think it is worth
> 
> understanding what you are doing with the formula.  For the longest time
> I
> 
> simply had the formula in a spreadsheet and used it without comprehension.
> 
> 
> When I finally understood what I was doing more than a few light bulbs
> went
> 
> off in relation to other stuff I had read etc.

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