Theme: Main buttons in general
Q:

Problem: Empty buttons icons in SF 5 Photoshop plug-in on Mac. Conditions: SilverFast 5 uses the apple appearence manager to display its interface. The apple appearence manager must be activated (check in Control Panel > "Extension Manager").

A:

Workaround:
this appearance problem can be overcome by moving certain plugins - that are not fully compatible with Mac OS 8.x or higher - out of their location!
Please check if you can find the "Kodak CMS Photo CD" plugin in:
...Adobe Photoshop 5 > Plugins > Import/Export
...Adobe Photoshop 4 > Plugins > file formats
Please delete (or move to another place) this "Kodak CMS Photo CD" plugin module.
If problem not solved:
appart from that Kodak PhotoCD-plugin, it could also be any other non-OS8.x-compatible plugin. If removal of that "Kodak CMS Photo CD" plugin doesn't solve the problem, try removing other 3rd party plugins out of their resident folder, and check SilverFast again.


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Q:

What does it mean when one (or more) of the main buttons (icons) in the SilverFast interface turn red?

A:

The background color of the icons for tools will change from blue to red when the parameters are changed,


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Q:

What is does the histogram tool actually show?

A:

a histogram is a map of the gray scale Luminance values. the histogram just graphs a bar chart of the count of the pixels with each possible luminance tone. And in our real photos, it's not the count that's important, but instead the shape of the curve, how the masses of light and dark pixels contribute to the total.


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Q:

What is the difference between the "N" setting and the "L" setting in the "Gradation Curves" window?

A:

In "L" mode (logarithmic) only 3/4 tones are affected (dark areas), in "N" mode (Normal) all 1/2 tones are affected.


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Q:

What does "L" for "Logarithmic" and "N" for "Normal" really mean?
Is "Normal" similar to or the same as the boxes on the "Levels" preset in Options >Auto -> "Auto Threshold Highlight/Levels" and AutoThreshold Shadow/Levels"? Or is it something altogether different?

A:

"N" for "Normal" setting (in both Gradation Curves and in Histogram Dialogue) correspond to the aspect of the "Levels" (in the Option dialogue>Auto tab) preset described in the Manual as "Numeric"

The AutoThreshold boxes in the OPTION / AUTO card are the same thing as the min. max. boxes in the Histogram. both are fix points. The N (Normal) in the Gradation Curves, however, is something else. Here we talk about a curve, that is change of values involving all mid-tones in the entire image, whereas with the other two limit-values are set.


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Q:

How do I generate the SF Statistics file?

A:

The file called "SF Statistics" lists the details of the recents the scan settings.
Thus it might be helpful for SilverFast support problem solving issues.
I can be generated from the "Expert Dialogue" (rightmost button on the horizontal panel in the scan control window, only) -> button "Output Statistics".


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Q:

Neutralizing an image with inconsistent colour casts using the multiple neutral point selection.

A:

By selecting the neutral grey pipette you can click anywhere in the SilverFast preview, thus selecting that point to have neutral grey value. You can set multiple neutral points throughout the scan frame.

This method allows for inconsistent colour cast correction only within limited scope. That means contrary corrections like neutralizing a blue cast and a yellow cast simultaneously are not possible.
However, this method helps neutralizing images with a fine gradation of tonal values and different colour casts in different gradation steps.

Simply set 1 to 4 neutal points throughout the existing gradation steps.
NOTE: the nature of neutralization imposes limits to this method of neutralizing inconsistent colour casts. The more neutral points you choose the more likely you may get the error message: "Cannot set the chosen point to neutral because of a color range conflict.", because the tonal values of a chosen point don't fit into the control range of the current gradation curves.

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