Camera Aperture - What You Need To Know
Camera Aperture ExplainedIn simple terms, aperture is the opening in your lens that lets light come into contact with your film (or digital sensors). The opening can be changed using your camera"s F stop or if you have a digital camera you can change it using the manual settings. Many digitals have a fixed-aperture mode in which you can choose the aperture and the camera will figure the rest out.
Aperture is measured in "F" numbers and is usually represented on your camera in abbreviations such as F8, F/8 or some variation in between. As the value of the F goes up, the amount of light allowed into the camera goes down. For example, an F value of 1/4 is a wide open aperture while 1/22 is considered as closed as possible.
What Does the Aperture Really Do?
Camera aperture has a dramatic impact on the final prints of your photographs. A closed aperture will let in very little light into the camera, which will give you the chance to expose the film (or digital sensor) for a longer period of time. Adjusting the F value is a great way to use slow shutter speeds and long exposures without overexposing your film into oblivion.
Additionally, using aperture allows you to react on the fly to changes in lighting. If you"re photographing in a bright environment, a high F stop (very closed aperture) will give you the chance to use slower shutter speeds. On the flip side, when photographing in low light environments, opening up the aperture with a very low F value will give you more flexibility in shooting the image and will often prevent the use of a flash.
When is a Good Time to Change the Aperture?
You don"t have to manipulate your camera aperture. Most SLRs do it automatically to great success, and sometimes it"s easier to not fret over all the tiny details. However, if you want more direct control over the depth of field in your image then you can manually adjust the camera"s aperture. An open aperture (low f stop) will give you very little depth of field (subjects close to the camera will be clear while the background is blurry) and a closed aperture will make everything in your photograph seem more detailed.
Knowing how to adjust your aperture and when to best use it is a powerful tool to have in your photographer"s toolbox. One great way to see how it affects your images is to shoot every photograph twice ð€“ once with a low F value and once with a high one. Aperture is a great way to expand your creativity with the simple change of a setting.