Shutter speed controls how long the sensor/film is exposed. Shorter shutter speeds normally provide a sharper image. Longer shutter speeds give you more blur.
If you're hand holding your camera a good rule to go by is to multiply you focal length by two and use that as your shutter speed. For example, if your focal length is 100mm--your shutter speed should be 1/200sec or faster.
shutter speed and lens aperture
Usually, one would change the aperture to compensate for the change in shutter speed in order to keep the level of exposure the same. Changing the aperture affects the depth of field.
Exposure, in digital or film photography, is determined by aperture and shutter speed. On a manual camera, the user selects both values.On an automatic camera, there are four possibilities:Manual mode. User selects both aperture and shutter speed.Shutter priority. User picks the shutter speed and the camera adjusts the aperture to ensure proper exposure.Aperture priority. User picks the aperture and the camera adjusts the shutter speed to ensure proper exposure.Program mode. The camera selects both values.
A manual camera is a camera that does not have any automated functions, like film transport that winds the film, or exposure modes like shutter or aperture priority. Most manual cameras also do not have auto-focus capability.
If the camera has a "shutter priority mode", usually called "S mode", then the shutter speed is controlled directly by the user when the camera is in this mode, by moving a dial or pressing a button (or both). If the camera has a "manual" mode, usually called "M mode", then the shutter speed and aperture are both controlled directly by the user by moving dials or pressing buttons (or both). Some cameras have automatic modes which allow the user to control the minimum and maximum shutter speeds that will be selected by the camera when considering all other factors. If the minimum shutter speed is reached, the camera will increase the ISO or aperture size to compensate for under-exposure. If the maximum shutter speed is reached, the camera will decrease the ISO or aperture size to compensate for over-exposure.
The shutter speed setting controls the picture exposure, or how dark or bright the picture will be. Wikipedia has some very good information on shutter speed and aperture.
shutter speed and lens aperture
Exposure is the combination of aperture and shutter speed. Aperture (measured in f-stops) determines the amount of light that will enter your camera. Shutter speed (measured in seconds) determines the amount of time that the shutter will stay open to allow light to enter.
Well when the aperture is wide enough and shutter speed is not fast enough then there will be enough amount of light for the photo to be taken and looking good enough.
Usually, one would change the aperture to compensate for the change in shutter speed in order to keep the level of exposure the same. Changing the aperture affects the depth of field.
Shutter speed, aperture, and ISO are the three main factors that control exposure in photography. Shutter speed determines how long the sensor is exposed to light, aperture controls the amount of light entering the camera, and ISO adjusts the camera's sensitivity to light.
Aperture priority lets you set the aperture you want and the camera sets the shutter speed for you. You use it when you want to control depth of field. Shutter priority lets you set the shutter speed you want and the camera sets the aperture for you. You use it when you want to control how motion is rendered in the photograph. Program mode sets both shutter speed and aperture for you. Use it when you are not concerned with aperture or shutter speed control.
In photography, aperture and shutter speed are both important settings that control the amount of light entering the camera. Aperture refers to the size of the opening in the lens, while shutter speed determines how long the camera's shutter remains open. These settings work together to regulate the exposure of the image. A larger aperture lets in more light, while a faster shutter speed allows less light to enter. Adjusting these settings can affect the brightness and sharpness of the photo.
In aperture priority mode, you set the aperture and the camera automatically adjusts the shutter speed for proper exposure. In manual mode, you have full control over both aperture and shutter speed settings, giving you more creative control but requiring you to manually adjust both settings for proper exposure.
Exposure, in digital or film photography, is determined by aperture and shutter speed. On a manual camera, the user selects both values.On an automatic camera, there are four possibilities:Manual mode. User selects both aperture and shutter speed.Shutter priority. User picks the shutter speed and the camera adjusts the aperture to ensure proper exposure.Aperture priority. User picks the aperture and the camera adjusts the shutter speed to ensure proper exposure.Program mode. The camera selects both values.
Aperture Priority has the camera set the shutter speed for you allowing you to set the aperture and it will set what shutter speed it thinks is best for your current light situation.
Shutter priority mode allows you to set the desired shutter speed while the camera adjusts the aperture, whereas aperture priority mode lets you choose the aperture setting while the camera adjusts the shutter speed.