Nikkor 50 mm | f/1.4

Photo technique: "Blue Hour"

Submitted by Jürgen Tenckhoff on Sun, 10/15/2017 - 18:55

The blue hour is of particular importance for photography.

Pictures taken at this time of day, when dusk changes to darkness after sunset, can create a mixture of unsettling melancholy and uncertainty about the threatening black of the night, the moods that, on closer inspection, have nothing to do with the subject. Perhaps they also evoke memories of experiences at this time of day, when our powerful sense, our visual perception, begins to lose its protective power with diminishing light and invisible dangers are suspected in the shadows ...


Photo technique: "Infrared + camera conversion"

Submitted by Jürgen Tenckhoff on Sun, 06/30/2013 - 20:32
To understand the peculiarities of infrared photography, i.e. a process for recording invisible light, let us first consider a few aspects that are important for recording visible light. Only a narrow range of electromagnetic waves can be detected by our (healthy) eyes. It ranges from red (750 nm) to violet (400 nm). Depending on the location, day and season, there are differences in the distribution of the individual wavelength components in the perceived light. If the reddish parts predominate, the light is perceived as warmer, and the bluish parts predominate, resulting in a cooler color mood.