Exposure Essentials

             Comparing the Effects of Exposure on Every Shot

   ISO

this refers to the sensitivity of photographic film to lights. It indicates how quickly it can capture an image with a given amount of light.

•        High ISO; Increases the sensor's sensitivity, allowing you to shoot in low-light situations without a flash. It also reduce the clarity of an image.

         

                                   The above picture is an example of a high ISO  photo ISO 800

•       Low ISO; Produces clean images with grain. Also Requires more light for a proper exposure, making it best suited for bright conditions

          

                                    The above picture is an example of a low ISO photo ISO 100

    Shutter Speed

This is the amount of time the camera's shutter remains open when taking a photo controls

 the amount of time that we capture light for and allows us to freeze or blur motion. 

   

• Fast Shutter Speed; Freezes action, ideal for sports or wildlife photography.

                                                    The above picture is an example of a fast shutter speed 1/200

• Slow Shutter Speed; Can create motion blur, which might be used to show movement.

   

                                      The above picture is an example of a slow shutter speed 1/40

     Aperture

Is the size of the hole in the diaphragm that allows light into the camera. The larger the hole, the more light that enters the camera in a given time.

• Large Aperture (Small f-stop number): Produces a shallow depth of field, which means the subject is in focus while the background is blurred. This is great for portraits.

           

The above picture is an example of a large aperture

• Small Aperture (Large f-stop number): Produces a deep depth of field, keeping more of the scene in focus, which is useful for landscapes.

           The above picture is an example of  small aperture