Week 4: Introduction to Cameras – Unit 1

Introduction:

In this task I will be going out and taking pictures using different settings on the camera for shutter speed, aperture and ISO in order to find out what the differences in settings do to the shots.

Shutter Speed:

Shutter speed is the speed in which the shutter opens and closes in order to allow light to be exposed onto the sensor. A faster shutter speed will capture a more sharp picture, whereas a slower shutter speed will capture a more blurred picture, this is because in the time that the shutter is open the subject has moved and so creates a blur effect.

Typical Shutter Speeds are:

  • 1/1000 s
  • 1/500 s
  • 1/250 s
  • 1/125 s
  • 1/60 s
  • 1/30 s
  • 1/15 s
  • 1/8 s
  • 1/4 s
  • 1/2 s
  • 1 s
  • 2 s
  • 4 s
  • 8 s
  • 15 s
  • 30 s

IMG_2407IMG_2409IMG_2410

1/1000                                      1/500                                       1/100

Aperture:

Aperture is the size of the hole inside a lens that allows a certain amount of light onto the sensor of the camera. The standard sizes range from f/2.8 up to f/22, but can go much higher on better equipment.

The size of the aperture has a direct impact on the Depth of Field. Higher aperture like f.4.5 has a shallower depth of field and so only objects in the forefront of the picture will be sharp, whereas the background will look blurred, however lower aperture like f/29 has both the foreground and background sharp.

IMG_2445IMG_2446IMG_2447

f/4.5                                          f/13                                          f/29

ISO:

ISO measures how sensitive the digital sensor on the camera is. In a dark situation a higher ISO level is used in order to get a higher shutter speed in order to get the exposure correct. There are disadvantages to using a high ISO though. There can be a lot of visual noise or graininess on the photo. The standard ISO levels are:

  • 100
  • 200
  • 400
  • 800
  • 1600
  • 3200
  • 6400

IMG_2479IMG_2477IMG_2478

200                                           1600                                        6400

Evaluation:

This was a particularly interesting lesson and I like learning more about the functions of a camera and learning new skills. I didn’t know much about the different settings on the camera before this lesson so it was helpful for future projects to know this.

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Week 4: Introduction to Cameras – Unit 1

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