ISO Draft
ISO Draft
ISO is a setting in digital cameras that can be used make your images lighter or darker. The ISO setting directly applies to the camera's image sensor. It is part of what is commonly called the exposure triangle. The other 2 parts of the "exposure triangle" are the camera shutter speed and the camera lens aperture.
All of the 3 "Exposure Triangle" settings can be used to increase or decrease the brightness of the pictures that you take. However, the brightness of an image is not the only thing that can be affected by the exposure triangle settings. Take a look at Camera Exposure Basics for more on this subject.
Back to ISO.....Shown below is an ISO settings chart. Each higher (larger) ISO number or setting will allow twice as much light to reach the reach the camera's image sensor. So, a brighter image will be produced.
About the image sensor: The image sensor captures the light coming through the camera lens, Including the camera shutter and lens aperture. It is converted to an electronic signal. That signal is sent to the camera's processor and it transformed into a digital image. That is a very simplified explanation of how a digital camera produces pictures.
As you can see, image #1 was taken at ISO 200. Image #2 was taken at ISO 400 which produced a lighter image. That is the most basic change you can make by changing the ISO. Increasing the ISO setting will increase the image sensor's sensitivity to light. This feature comes in very handy when you are taking pictures in low light situations.
Adjusting the camera shutter speed can freeze motion or cause motion blur in an image. Adjusting the camera lens aperture setting may affect the overall look of sharpness throughout your image.
Changing the settings of any of the 3 exposure triangle settings can make your image brighter or darker. The big difference in how each function can affect your image is that the camera shutter speed can affect the look of motion in an image. A slower shutter speed may not freeze the action and cause motion blur in your picture.
Changing the camera lens aperture setting can affect the overall sharpness of the
When it comes to the term ISO, it does not apply exclusively to digital cameras. ISO is an abbrevialtion for the International Standards Organization which sets standards and measurements for all kinds of things worldwide.
Iso setting is probably a better term to use when it comes to photography. All digital cameras have ISO settings built into them and they can be changed to make photos lighter or darker.
Take a look at the ISO chart below. Each higher ISO number will double the amount of brightness in an image than the lower number next to it. So, each lower number will produce an image with about 1/2 the brightness than the higher number next to it.
All of the 3 "Exposure Triangle" settings can be used to increase or decrease the brightness of the pictures that you take. However, the brightness of an image is not the only thing that can be affected by the exposure triangle settings. Take a look at Camera Exposure Basics for more on this subject.
Back to ISO.....Shown below is an ISO settings chart. Each higher (larger) ISO number or setting will allow twice as much light to reach the reach the camera's image sensor. So, a brighter image will be produced.
About the image sensor: The image sensor captures the light coming through the camera lens, Including the camera shutter and lens aperture. It is converted to an electronic signal. That signal is sent to the camera's processor and it transformed into a digital image. That is a very simplified explanation of how a digital camera produces pictures.
As you can see, image #1 was taken at ISO 200. Image #2 was taken at ISO 400 which produced a lighter image. That is the most basic change you can make by changing the ISO. Increasing the ISO setting will increase the image sensor's sensitivity to light. This feature comes in very handy when you are taking pictures in low light situations.
Adjusting the camera shutter speed can freeze motion or cause motion blur in an image. Adjusting the camera lens aperture setting may affect the overall look of sharpness throughout your image.
Changing the settings of any of the 3 exposure triangle settings can make your image brighter or darker. The big difference in how each function can affect your image is that the camera shutter speed can affect the look of motion in an image. A slower shutter speed may not freeze the action and cause motion blur in your picture.
Changing the camera lens aperture setting can affect the overall sharpness of the
When it comes to the term ISO, it does not apply exclusively to digital cameras. ISO is an abbrevialtion for the International Standards Organization which sets standards and measurements for all kinds of things worldwide.
Iso setting is probably a better term to use when it comes to photography. All digital cameras have ISO settings built into them and they can be changed to make photos lighter or darker.
Take a look at the ISO chart below. Each higher ISO number will double the amount of brightness in an image than the lower number next to it. So, each lower number will produce an image with about 1/2 the brightness than the higher number next to it.
Digital camera ISO settings are directly related to the camera's image sensor which is located inside the camera. When you press your camera shutter button to take a picture, the image sensor captures the light coming through the camera lens and converts it to an electical signal. That signal is processed by the camera and becomes the digital picture you just took.
The two pictures below were taken with the same basic camera settings except for the ISO
So what does that have to do with ISO?
and records the amount and type of light that reaches the sensor as an electical charge during the exposure. . through the camera through the lens, the camera shutter, and the lens aperture.
and records the amount and type of light that reaches the sensor as an electical charge during the exposure. . through the camera through the lens, the camera shutter, and the lens aperture.