Digital BW, The Print

Hi Ernst,

I am a big fan of Canson Infinity Rag Photographique 310. I switched over to
it about 18 months ago when I got fed up of the inconsistency in HPR
batches. It has a very consistent surface in terms of coating and texture,
both between batches and within a sheet.

In terms of dmax, using MIS Eboni on my R1900 I get L= 15 - 15.3 using QTR
curve style and 16 using Cone style Curves.
The difference is the result of there being just two black densities in the
QTR curve mix @ dmax and five black densities in the Cone mix.The lighter
inks holding back the dmax. However the gotcha is that QTR curve based
prints are very susceptible to posterization because the dithering has
limited overlapping inks to work with. So its a trade off at the end of the
day.

Mike



On 23 February 2010 10:11, Ernst Dinkla <edinkla@...> wrote:

>
>
> While the Canon Baryta gets a lot of attention I think the Canson
> Infinity Rag Photographique 310 -210 gsm, is the real jewel in the crown.
> Measuring many paper whites these days it is the one that shows no OBA
> but exceptionally high reflectance in an uniform spectral curve.
> To my eyes in 5000K light it is equivalent to Photorag that has OBAs,
> possibly even a bit whiter. In 3200K halogen it is warmer than HPR. If
> I compare the spectral curve to Moab Entrada Natural White as shown on
> Laszlo's page I guess it is whiter than that paper too. I do not have
> that Moab paper to measure. With spectral measurements on the front and
> the back I see no OBA and parallel curves throughout which indicates a
> very clean base and a rich application of good whitening agents.
>
> So far I have not printed anything on it but any reasonable Dmax must
> create a wide dynamic range on that matt paper.
>
> Anyone who uses it already?
>
> --
> Met vriendelijke groeten, Ernst
>
> Dinkla Gallery Canvas Wrap Actions
>
> | Dinkla Grafische Techniek |
> | www.pigment-print.com |
> | ( unvollendet ) |
>
> 
>


[Non-text portions of this message have been removed]