Final answer:
The mottle level of an image can be adjusted by changing exposure factors such as shutter speed, aperture, and ISO sensitivity. These adjustments help to control the amount of light that reaches the camera's sensor, which affects the image's brightness and contrast.
Step-by-step explanation:
The mottle level (or granularity) of an image is influenced by exposure factors such as shutter speed, aperture, and ISO sensitivity. When correctly adjusting these settings, one can achieve the desired level of brightness and contrast in an image. For instance:
- Increasing the shutter speed allows less light to enter the camera, potentially darkening the image. A slower shutter speed lets in more light, which can brighten the image.
- Adjusting the aperture changes the size of the lens opening, which affects the amount of light that reaches the sensor. A smaller aperture lets in less light, while a wider aperture allows more light.
- Changing the ISO sensitivity can make the camera's sensor more or less receptive to light, which also affects the image's exposure. A higher ISO can brighten an image in low-light conditions, but may also increase noise.
Moreover, the quality of light greatly affects the appearance of a photo. Different lighting conditions require adjustments to these exposure factors to achieve properly exposed photographs. Photography students should practice manipulating these variables to understand how each change impacts the resulting photo.