SilverFast offers a number of automatic optimizations that can powerfully assist you in optimizing your images and do some of the work for you.
Automatic image adjustment:
The automatic image adjustment function is located in the bar of the color modifying tools next to the preview scan button above the preview. There are two general optimizations, "Auto" and "Auto CCR" (Color Cast Removal) as well as various automatic functions that are adapted for typical and frequent scenarios. A long click on the button for automatic image adjustment opens the menu in which you select the appropriate optimization for your image. You can also reset the automatic image optimization in this selection menu.
The automatic image adjustment makes changes to the histogram and gradation so that these tools are opened and, by way of a red dot on the icon, indicate that they are active.
The automatic image optimization by default doesn't optimize the contrast. If the automatic optimization is also supposed to adapt the contrast, simply activate this option in Preferences > Auto.
The human eye perceives contrast as sharpness. If you have the impression that your images are too flat or blurred, try using some contrast.
Also under Preferences > Auto, you can define an automatic image adjustment that is automatically performed on every image individually in every frame search. This is particularly important for batch scans in which not every image is individually adapted via the JobManager (in Ai Studio).
Dust and scratch removal with iSRD
Thanks to an additional infrared lamp installed in the scanner, the infrared-based dust and scratch removal function called iSRD (Infrared Smart Removal of Defects) allows very precise recognition and removal of dust and scratches. It is not available in Reflective mode or on scanners without an infrared channel. This function works automatically, but can of course also be adapted manually.
Activate this function by clicking once on the "iSRD" button in the vertical toolbar. The red dot in the center of the button indicates that the tool is switched on and is being used.
You should not use the infrared-based dust and scratch removal function if you want to scan black and white negatives, and you should use it only with caution when scanning Kodachrome images. The silver halide in the film material can reflect the scanner's infrared light and cause artifacts in the image. An adjusted correction is already performed for Kodachrome images. It is however nevertheless advisable to work with low defect detection.
SilverFast uses the infrared image to detect dust and scratches on the original analog image and retouches them fully automatically for the digital image.
Multi-Exposure combines an under exposed scan of your image with a normally exposed one. Most slides, negatives or Kodachrome images have a very high dynamic range (also called density range), and only an increase in your scanner's dynamic range via Multi-Exposure enables the full dynamic range of the original to be obtained. This picks up more details in the dark and light ranges and reduces image noise. With Multi-Exposure, the scanner picks up far more different color gradations that SilverFast can utilize for image optimization , even if they cannot be perceived by the naked eye. This makes Multi-Exposure one of the most important digitizing tools, particularly in the case of extreme dense film types such as Kodachrome films.
Activate the "ME" button on the vertical tool bar. The red button indicates that Multi-Exposure is active. One some devices, the Multi-Exposure scan and the normal scan are preformed in one pass.
Multi-Exposure is available in the SE Plus and Ai Studio version. Multi-Exposure is available only for transparency scans and is hidden when you use Reflective mode. Multi-Exposure is also available for our raw data formats HDR and HDRi and, together with the 48-bit data, offers the greatest possible data volume.