Know-How and Tipps

Interfaces for film scanners

Measuring the resolution of film scanners

• What do the data of the resolution in DPI mean?
• Which resolution does a slide of 35 mm or a negative have?
• Theorical resolution against the practical resolution
• Determination of the resolution of the scanner with the help of a test image
• The USAF-1951 test target
• Application of the USAF-1951 test target
• Brief instruction for the determination of the resolution with the test target
• USAF-1951 target scans with different scanners

Density and density range of scanners

• Reflexion, Absorption and Transmission
• Opacity (Light impermeability)
• Density, Range of Density, Minimal Density, Maximal Density
• Range of density of scanners
• Relation between range of density and aperture step
• Range of density of some mediums and devices (practice)

Noise

Unsharp maskening

CCD Sensors in scanners and digital cameras

• Semiconductor - Basics and Dopings
• Semiconductor - p/n-Junction and Rectifier
• The photoelectric effect
• A/D-Converter: From Light over Electricity to a Digital Pixel
• Colour Filter Systems
• CCD-Lines of Scanners
• CCD-Chips in Digital Cameras

Dust and Scratch removal

Scanning Kodachrome Films

• What is actually a Kodachrom-film?
• How does one recognize Kodachrome films?
• Is Ektachrome equal to Kodachrome?
• Scanning Kodachrome films
• Kodachrome scans with the ICE dust and scratches remover
• Scanning Kodachromes with the Digital ICE Professional
• The ideal filmscanner for Kodachrome films
• Information about our scan-service

Dictionary Photography, Digitalization, Image editing

• Special terms of photography, scanning, image editing
• German - English
• English - German