Digital BW, The Print

We sell a light trap that can be measured with a spectro; it's on our  
website under the name SpyderCube. I use it regularly to take absolute  
black measurements with my spectros.

C. D. Tobie
Global Product Technology Mngr.
Digital Imaging & Home Theater
Datacolor.com
CDTobie@...

On May 15, 2009, at 6:03 PM, "Greg" <dfaprinting@...> wrote:

> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, C D Tobie  
> <CDTobie@...> wrote:
>
>>
>>
>> Right. But we have devices costing more than a small car in our  
>> optics
>> lab, and they don't make it to 3.0 either, they just make it a bit
>> further beyond 2.5... which is why I said impossible or expensive,
>> depending on the spec...
>>
>
>
> Ok, that answers that question then, I was afraid that it might not  
> be possible with current technologies to produce something that  
> costs less than a house that can measure this sort of density. I  
> know that what I'm seeing is really just bouncing along the noise  
> floor of the spectros but it is still pretty impressive. Wish I had  
> a light trap that used to be used for black calibration on some of  
> the older devices to see what it measured.
>
> And this is simply print, dry, measure and black down into the noise  
> floor of the spectro.
>
> Oddly it doesn't do very well on the Hawk Mountain papers. ALl three  
> inks only had about an L=18-20, two of the inks were Claria and the  
> dye ink that Ink Republic ships with their CIS. Guess it must be the  
> paper, I'll have to get a few other "fine art" papers to try before  
> I switch to a new pigment/dye hybrid that I need to try.
>
>
>
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