At 10:14 PM 8/27/1998 -0700, George you wrote:
>
>Yes. Contrast reduction mask IS an unsharp mask. You expose the negative
thru
>a diffusion sheet of some kind to get a degree of unsharpness. It actually
>increases the local sharpness and contrast, while decreasing the overall
>contrast in the print. You can prove it mathematically. I
>
George, Thanks for this explanation. Now I think I know the origin of that
seemingly backwards appellation "unsharp mask." In darkroom, I noticed
that it reduced overall contrast, not that it improved sharpness. The
Beseler was probably shaking anyway <g>.
>
>I'm watching the technology. Thanks for the tip on the Konica. I'm pretty
>impressed with what my Stylus 800 can do with the photo quality paper, I must
>admit. But until it can do a 20x24 that looks as good as a Ciba, I'm just
not
>there. There is Iris technology right now that's VERY interesting. But
still
>pretty expensive.
>
Make sure to get Konica *QP*. B&H supposedly has it. I've gotten it from a
company called All Laser Service 1-800-360-1337. Konica makes a bunch of
kinds and only the QP is really photo quality (so I understand, not having
actually tried the other Konica papers). It has an RC base and is quite
thick and apparently waterproof.
20x24 is not far away. I'm astonished at the strides among these
consumer-level printers in just the last year. A great time to be alive.
Joel
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