Valotusaika
Valotusaika is a Finnish term that translates to "exposure time" in English. It is a fundamental concept in photography and imaging, referring to the duration for which a photosensitive surface, such as film or a digital sensor, is exposed to light. The amount of light that reaches the sensor or film is determined by a combination of the aperture (the size of the opening that lets light in) and the shutter speed, which controls the valotusaika.
In photography, valotusaika plays a crucial role in determining the brightness and appearance of an image.
The concept of valotusaika extends beyond traditional photography. It is also relevant in scientific imaging, such