Explain what Aperture and Shutter Speed is in digital photography?
I need to write an explanation of shutter speed and aperture in photography.
Also need to explain how Aperture effects an image taken in portrait and landscape modes.
Have to give an explanation and some examples of when adjusting shutter speed would be useful.
Aperture is the lens opening, which controls how much light comes through the lens.
Shutter speed is how long the shutter exposes the sensor/film to the incoming light.
The aperture, along with the lens focal length and sensor size, affects the amount of area in focus in front of and behind your subject, called "depth of field."
Depth of field is important because of those times you may want a large area in focus (a landscape shot) or a shallow area in focus (say, for a portrait). A wide aperture or big lens opening makes for shallow depth of field, while a small aperture makes for more depth of field or more area in focus.
As for adjusting the shutter speed, it could be useful for stopping action (a fast shutter speed) or for creating special effects (motion-blurred water) or to achieve a particular aperture to get the depth of field you want (shutter speed and aperture together control the exposure. Change one variable and you have to change the other).
So, for your homework, you now have to hope I told you the truth about everything or you can copy and take the risk that everything I said or some of what I said is a lie…Or you could just double-check what I said and then re-write it into your own words.
Posted in digital portrait photography
December 27th, 2009 at 5:59 am
Aperture controls the amount of light allowed to enter.
Shutter speed controls how long the light admitted exposes your sensor.
Aperture and lens focal length controls depth of field.
The faster the shutter speed the better for stopping action.
In the future, please do your own homework.
References :
December 27th, 2009 at 6:46 am
Aperture is the lens opening, which controls how much light comes through the lens.
Shutter speed is how long the shutter exposes the sensor/film to the incoming light.
The aperture, along with the lens focal length and sensor size, affects the amount of area in focus in front of and behind your subject, called "depth of field."
Depth of field is important because of those times you may want a large area in focus (a landscape shot) or a shallow area in focus (say, for a portrait). A wide aperture or big lens opening makes for shallow depth of field, while a small aperture makes for more depth of field or more area in focus.
As for adjusting the shutter speed, it could be useful for stopping action (a fast shutter speed) or for creating special effects (motion-blurred water) or to achieve a particular aperture to get the depth of field you want (shutter speed and aperture together control the exposure. Change one variable and you have to change the other).
So, for your homework, you now have to hope I told you the truth about everything or you can copy and take the risk that everything I said or some of what I said is a lie…Or you could just double-check what I said and then re-write it into your own words.
References :