Depth of field - sometimes called depth of field (even though it has a meaning different technique - some people use that term) - is an area that many photographers feel some confusion.
By changing the aperture of the lens, one can use the resulting image will have more of the image in focus near to far or you can limit the image at the focus of a place.
In ƒ1.8, is the focal point with a lot of things defined before and behind the subject is further away from the softer look on the object they are. This is a very nice way to call attention to the subject.
In ƒ22 will focus seem to be very close to the camera focuses on the almost endless. This is great for a sense of place that you shot the photo, or how many people in the image and keep clearly in focus.
However, there are limits to how it will appear in the final image.
Exercise: Find a subject / object, which will still be in a place or for a few minutes. Stand about 2 meters from the subject and focus on it. Make your ƒstop to 1.8 (or as close as possible to light in the base) and get the shutter speed to achieve the correct exposure for your meter. You can set the camera to Priority (AV Mode) and let the camera automatically adjusts shutter speed. You should put a 50 mm lens or a zoom lens of 50 mm.
Put your ƒstop to 16 and the shutter button switch as needed.
Go back about 10 meters away from the subject and then make the settings above - then at first in the ƒ1.8 ƒ16.
To really drive this exercise, try the above steps with different lenses or at different lengths, if you have a zoom lens - i.e. Try it at 35 mm and 200 mm, or what is your zoom lens.
By changing the aperture of the lens, one can use the resulting image will have more of the image in focus near to far or you can limit the image at the focus of a place.
In ƒ1.8, is the focal point with a lot of things defined before and behind the subject is further away from the softer look on the object they are. This is a very nice way to call attention to the subject.
In ƒ22 will focus seem to be very close to the camera focuses on the almost endless. This is great for a sense of place that you shot the photo, or how many people in the image and keep clearly in focus.
However, there are limits to how it will appear in the final image.
Exercise: Find a subject / object, which will still be in a place or for a few minutes. Stand about 2 meters from the subject and focus on it. Make your ƒstop to 1.8 (or as close as possible to light in the base) and get the shutter speed to achieve the correct exposure for your meter. You can set the camera to Priority (AV Mode) and let the camera automatically adjusts shutter speed. You should put a 50 mm lens or a zoom lens of 50 mm.
Put your ƒstop to 16 and the shutter button switch as needed.
Go back about 10 meters away from the subject and then make the settings above - then at first in the ƒ1.8 ƒ16.
To really drive this exercise, try the above steps with different lenses or at different lengths, if you have a zoom lens - i.e. Try it at 35 mm and 200 mm, or what is your zoom lens.
PS - A related issue is Bokeh is a Japanese word from a "Boke" which more or less mist or means adopted. When a photographer, said that a picture is "good bokeh" that the elimination of the focal points of a uniform quality means. Different lens and camera combination of different qualities of bokeh.
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