When you take pictures during the day, this allows you to illuminate objects that are shadowed without sacrificing objects that already have enough light. A good example of this is when you take pictures of backlit people. It is most effective when the flash is not too strong and acts as a fill light.
When the battery has been removed for a long time, the settings of functions including Record Mode and white balance stored in the camera will be returned to the factory default settings. Default settings represent a status that is almost the same as these factory default setting. The camera will be returned to the default settings when the power is turned off, but settings such as date and time will be retained. For details on the default settings, refer to the camera's instruction manual.
Depth of Field
When the focus is on the subject, there is an area both behind and in front of the subject that also appears in focus. The depth of the area that appears in focus is known as the depth of field. The depth of field is deeper (wider area) with lenses that have shorter focal lengths and shallower (narrower area) with lenses that have longer focal lengths.
Placed between the subject and a direct source of light to soften and diffuse the light that hits the subject. A commonly seen type is the kind that covers the element of a flash so that light does not directly fall on the subject.
One of the functions related to the action of the camera when the shutter is released. It includes sequential shooting and AF sequential shooting. With some camera models, self-timer and auto-bracketing settings are also added.