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What is Multi-Exposure and what can you use it for?
Multi-Exposure is a technique for increasing a scanner's dynamic range and to reduce image noise – developed and patented by LaserSoft Imaging.
What is the Dynamic Range?
The Dynamic Range of a scanner, also referred to as density range or contrast range, is a measurement for a scanner's capability to recognize contrast levels.
Contrary to reflective originals like photo transparent originals (black & white film), color negatives and slides consist of multiple film layers, which respond to light differently. Therefore, transparent originals achieve a high Dynamic Range when captured, which usually exceeds a scanner's capabilities. As a consequence, especially in the very light and shadow image areas, image details get lost when scanning.
The Dynamic Range of each stage (capture, scanning, editing and storage) plays a crucial role in the quality of the final output. Generally, technologies with greater Dynamic Range produce better results.
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How does Multi-Exposure increase the Dynamic Range?
SilverFast Multi-Exposure records an original's maximum Dynamic Range by performimg a double scan with an increased exposure time of the second scan.
This procedure captures the light image area's details in the first pass and the the shadow details in the second. Afterwards an algorithm calculates the final scan, which now contains any detail, from each single scan.
Benefit from Multi-Exposure now
Enter your existing SilverFast serial number and the coupon code from your SilverFast booklet above. Click on "Проверить" to get your individual upgrade price.
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