You are in Nature Science Photography
Basics
What contrast is and how to determine it
Contrast perception
Why contrast is crucial to our visuality
The dynamic range of the visual system
The response range of the photoreceptors
The minimum size of brightness differences
The number of tone values in a print
Contrast in photography
Requirement 0 – Our expectations from the contrast reproduction of a photograph
Factors we must take into account to meet requirement 0: Factor 1 – Stray light
Factors we must take into account to meet requirement 0: Factor 2 – Ambient brightness
Factors we must take into account to meet requirement 0: Factor 3 – Image quality
The requirement 0 in analog photography
The requirement 0 in analog photography: Practical Consideration Reversal Film
The requirement 0 in analog photography: Practical consideration negative film plus paper
The contrast behavior of electronic image carriers
The dynamic range of electronic image carriers
Determining the dynamic range of a digital imaging system
The bit width of the A/D conversion
Requirement 0 in the digital area
Gamma correction
Gamma correction the first – distorting linearity
Gamma Correction the Second – Compensating the Monitor Properties
Gamma correction the third – distribution of brightness values on 8 bits
Gamma values in different color spaces
Contrast and exposure
Subject contrast and exposure range
12% or 18% – The problem of the calibration value of the exposure meters
Color brightness and exposure metering
Possibilities of exposure measurement – Object metering
Possibilities of the exposure measurement – Light measurement
Exposure determination for silver film
Since I started my first website in the year 2000, I’ve written and published ten books in the German language about photographing the amazing natural wonders of the American West, the details of our visual perception and its photography-related counterparts, and tried to shed some light on the immaterial concepts of quantum and chaos. Now all this material becomes freely accessible on this dedicated English website. I hope many of you find answers and inspiration there. My books are on