This is perhaps the most important setting. Setting the new camera to auto or program exposure mode causes it to decide which shutter speeds and aperture settings are best given the lighting conditions. This can be a great option for novice photographers who want to concentrate only on correcting the composition.
However, if you want to take more control of your exposure, you may want to try one of the scene mode options, such as Portrait, Landscape, or Sports. These modes adjust the exposure and color settings to better suit the subject.
Over time, as you become more confident and accustomed to your camera, you may want to take even more control by using options such as aperture and shutter mode.
In aperture priority mode, you set the aperture while the camera determines the best shutter speed.
It is worth remembering that setting a small aperture (represented by a large f / number, such as f / 22) creates a large depth of field, which means that much of your image will be in focus.
However, a large aperture (represented by a small f / number, such as f / 2.8) limits the depth of field so that only a small portion of the image on both sides of the main focal point is sharp.
Using the same principle as aperture priority, the shutter-priority mode allows you to set the desired shutter speed, for example, to freeze a fast-moving subject, and the camera then determines the appropriate aperture setting.
Finally, in manual exposure mode, you take full control and adjust both the shutter speed and aperture. On the Live View screen or in the viewfinder, you will find the camera gauge indicator to help guide you. Generally, you want the meter indicator to rest in the middle to provide an even exposure.
How to set exposure on Fujifilm cameras