Beginner’s Guide to Shutter Speed, ISO, Aperture
Nowadays, more digital point and shoot cameras are now equipped with
manual functions. These manual functions allow you to be more flexible and creative in your approach to photography..By changing the shutter speed, aperture and ISO,we can now able to spread the photography in different field..
1.Shutter Speed:
Shutter speed is a common term used to discuss exposure time, the effective length of time a camera's shutter is open. In still cameras, the term shutter speed represents the time that the shutter remains open when taking a photograph.In addition to its effect on exposure, the shutter speed changes the way movement appears in the picture. Very short shutter speeds can be used to freeze fast-moving subjects, for example at sporting events. Very long shutter speeds are used to intentionally blur a moving subject for artistic effect. Short exposure times are sometimes called "fast", and long exposure times "slow".
Slower shutter speeds are often selected to suggest movement in a still photograph of a moving subject.
Excessively fast shutter speeds can cause a moving subject to appear unnaturally frozen. For instance, a running person may be caught with both feet in the air with all indication of movement lost in the frozen moment.
Shutter speed with 6sec-
shutter speed with 1/1600 sec
2.Aperture:
The aperture stop of a photographic lens can be adjusted to control the amount of light reaching the film or image sensor. In combination with variation of shutter speed, the aperture size will regulate the film's or image sensor's degree of exposure
to light. Typically, a fast shutter speed will require a larger
aperture to ensure sufficient light exposure, and a slow shutter speed
will require a smaller aperture to avoid excessive exposure.
Every camera has a ‘pupil’ like our eye that changes diameter from wide aperture (letting lots of light in) to narrow aperture (letting less light in).
Shutter speed is measured in seconds, and the aperture diameter is measured by an f-number. A smaller f-number, like f1.8 or f3.2, refers to a wider aperture. While a high f-number, like f8.0, f22, refers to a narrower aperture. This is because the f-number is calculated by dividing focal length over the aperture diameter.
Aperture value f/8
Aperture value f/4.5
3.ISO:
ISO is a term that came from traditional film photography. It indicates how sensitive a film was to light. The lower the ISO (100, 200), the less sensitive it is to light. In digital photography, the ISO measures how sensitive the image sensor is. It’s the same principal as film photography. If you wish to capture more light in a dark environment, you would have to increase your ISO setting.
Now, before you crank up the ISO at any photo opportunity, you’d need to be aware that the higher the ISO, the more noise you’d have in your photos. The specks and graininess become more apparent when you enlarge the image. Generally speaking, you would have the ISO as low as possible.
with ISO 200
1.Shutter Speed:
Shutter speed is a common term used to discuss exposure time, the effective length of time a camera's shutter is open. In still cameras, the term shutter speed represents the time that the shutter remains open when taking a photograph.In addition to its effect on exposure, the shutter speed changes the way movement appears in the picture. Very short shutter speeds can be used to freeze fast-moving subjects, for example at sporting events. Very long shutter speeds are used to intentionally blur a moving subject for artistic effect. Short exposure times are sometimes called "fast", and long exposure times "slow".
Slower shutter speeds are often selected to suggest movement in a still photograph of a moving subject.
Excessively fast shutter speeds can cause a moving subject to appear unnaturally frozen. For instance, a running person may be caught with both feet in the air with all indication of movement lost in the frozen moment.
Shutter speed with 6sec-
2.Aperture:
Every camera has a ‘pupil’ like our eye that changes diameter from wide aperture (letting lots of light in) to narrow aperture (letting less light in).
Shutter speed is measured in seconds, and the aperture diameter is measured by an f-number. A smaller f-number, like f1.8 or f3.2, refers to a wider aperture. While a high f-number, like f8.0, f22, refers to a narrower aperture. This is because the f-number is calculated by dividing focal length over the aperture diameter.
3.ISO:
ISO is a term that came from traditional film photography. It indicates how sensitive a film was to light. The lower the ISO (100, 200), the less sensitive it is to light. In digital photography, the ISO measures how sensitive the image sensor is. It’s the same principal as film photography. If you wish to capture more light in a dark environment, you would have to increase your ISO setting.
Now, before you crank up the ISO at any photo opportunity, you’d need to be aware that the higher the ISO, the more noise you’d have in your photos. The specks and graininess become more apparent when you enlarge the image. Generally speaking, you would have the ISO as low as possible.
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