Wednesday 29 August 2012

Prac 11 - Shutter Speed and Aperture

PART A:

One -

a) When you move the slider to the left the picture goes brighter.

b) It tells us that the photograph will turn out brighter.

c) When moving the left slider the top left corner the trees are really bright and blurry.

Two -

a) When moving the slider to f/16 the image gets darker.

b) It tells us that the picture will be darker.

c) The photo changes on f/16 because there's less lighting and you can see the photo good.

Three -

a) This happens because the shutter speed makes it over-exposed

b) Move the shutter speed to f/22 so its back to the centre.

c) The problem is that you have to keep on changing these settings to fit different brightnesses.

Four -

a) You have to make the aperture to f/5.6 and 1/60 for the centre and you will get the good exposure.

Five - 

a) The lower shutter speed focuses on the background and the higher shutter speed focuses on the dog.

PART B - 

Exposure - Exposure is the amount of light allowed to fall on each area unit of a photographic medium

Shutter Speed - In photography, shutter speed is a common term used to discuss exposure time, the effective length of time a camera's shutter is open.

Aperture - A device that controls the amount of light admitted through an opening. In photography and digital photography, aperture is the unit of measurement that defines the size of the opening in the lens that can be adjusted to control the amount of light reaching the film or digital sensor.

ISO - 
International Standards Organization; the number represents the film's sensitivity to light.
A higher ISO number indicates the film is more sensitive and requires less light for a proper exposure.

Depth of Field - The distance between the nearest and the furthest objects that give an image judged to be in focus in a camera.

PART C:

Narrow depth of field:



















Large depth of field:



















Blurred Movement:















Frozen Movement:


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