Digital BW, The Print

I don't understand about 85% of what is said on this board. But I remember from 
engineering skool, that the way scientist and engineers used to achieve almost 
perfect blacks was thusly. They'd make a block of needles or razor blades on end 
  and shine the light at the points. The light would bounce around heading down 
and getting absorbed at every bounce. I think black velvet works the same way.

Could a coating be designed to sort of do this? Could a way be found to print on 
black velvet? Perhaps by spraying a white pigment on all but the Zone 0 black.
David




john dean wrote:
> That has been my experience also. William Turner and G. Etching
> "appear" to produce deeper richer blacks, especially with monochrome,
> than smoother excellent fine art papers, although they don't measure
> that way. The reflection theory makes total sense to me and although I
> have thought about that, I've  never heard anyone actually articulate
> it in regard to the various coatings of matte textures. I guess that
> could be a characteristic of all types of printmaking media, but
> especially coated stock.
> 
> Also, if we really want to take this further (I don't really) this
> visual-psychological aspect of print tonality is AS important or more
> important than densitometer readings of dmax values when evaluating
> any papers shadow rendition when exibited in the real world. It is
> unsetteling, but true. And, we also have the glass, plexiglass that
> changes things too.
> 
> I do belive people have talked about this reflection phenomena that
> may render a glossy prints shadow less dense visually than one on a
> good matte rag, while showing a far greater dmax when measured
> scientifically. When you get these glossy prints in a gallery or
> museum you are talking about even more surface reflections and
> scattered light.  That is one of the reasons I never get hung up on
> dmax numbers and when I hear them I take them with a grain of salt. I
> think they are just one thing to look at among many, even the scale of
> an image should be taken into account.
> 
> John
> 
> 
> By the way, that Crane MMax is certainly not revolutionary like they
> claimed. I kind of expeced that was all hype, and its not that bright
> either. It is really where they should have been 5 years ago.
> 
> John
> 
> 
> 
> 
>  > it's down to measurement error, or so close as to be visually the
>  > same) but the more textured surfaces seem to have blacker blacks than
>  > PhotoRag. I speculate this is because a smoother surface may begin to
>  > have a slight bit of actual though very diffuse reflection or sheen of
>  > the ambient light in the room. William Turner, German Etching, and
>  > White Velvet being more textured might break that up more. You know,
> 
> 
> 
> 
> 
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