Camera Features

Camera Features

The Lens

The major feature of all cameras are its lens, a piece of refractive clear material used to collect, focus and disperse light. Camera lenses are used to collect the light information to be recorded as an image. In digital cameras a series of sensors convert the light information whilst in film cameras the light is exposed to film. In cameras the light needs to be channeled through the hole in the structure otherwise any image recorded would likely be blurred. The basic lens shape is convex, bowing outwards, with extra elements in more complex cameras to keep flare and distortion down to a minimum. 

Aperture

Aperture is the size of opening to the lens of the camera just like the pupil is to our eye. Changing the aperture changes the depth of field F stops are the unit of which the aperture is measured where the larger the number the smaller the aperture. So f/2 is big and for close up focus f/22 small and deep focus

Shutter Speed/Frame Rate

How fast the the camera closes and opens over the lens to take an image. It is usually measured in frames per seconds, starting at a smooth 1/24 the shutter closes 24 times in a second creating 24 stills which when showed in Taking photos at a faster shutter speed would be needed when capturing movement to create a smoother image. As it creates

I.S.O. Light Sensitivity

The light sensored by the camera us usually clear and set to 100 which is an average setting and suitable for average lighting conditions. it increases usually in doubles but the higher the sensitivity the more noise and grimness is in the image

Practical Examples

ISO - 100

 - 200

 - 400

 - 800

 - 1600

 - 3200

 - 6400

I have noticed in this example the increase of light information that the camera has captured as I increased the ISO settings. I didn't notice much grain and noise in these images which may be because it was just still frames.

Shutter Speed (stills)

Slow shutter speed of 1"

Medium Shutter Speed of 1/60

I found that the increased shutter speed let in less light but clearly captured the light information with very little to no motion blur as the subject clapped her hands. The slow shutter speed was much slower than possible to use, as far as I know at this moment in time, for moving image but it does more clearly highlight the effects of motion blur. With the slower shutter speed there is more light coming through as the exposure time is longer but this gives chance for moving objects to blur.

Aperture

This photo was take with an aperture of f/ 5.5

Aperture of f/ 21