This document discusses the three key elements of photography: aperture, shutter speed, and ISO. Aperture affects depth of field, shutter speed controls movement capture, and ISO changes the camera sensor's sensitivity. Proper exposure is achieved by balancing these settings - adjusting one requires compensating the others. Metering light allows determining the correct exposure.

1. The most essential element
of photography: Light

2. Metering the Light =
Exposure
Exposure =
Aperture + shutter speed + ISO

3. • An aperture relates to the circular opening in the
lens that gets bigger or smaller, shown in ‘f’ numbers
• The shutter speed relates to the amount of time the
‘shutter’ remains open for.
• ISO relates to how ‘sensitive’ the camera sensor is.

4. APERTURE affects ‘Depth of Field’

7. http://ruleofthirdsphotography.com/interactive-aperture/
http://camerasim.com/camera-simulator/

8. SHUTTER SPEED affects the capture of ‘Movement’
Fast Shutter Speed
Slow shutter speed

10. It’s all about BALANCE!
• Getting a ‘correct’ exposure is about
creating a balance between the 3 main
camera settings.
• Adjusting one means you must
compensate with the others.

11. 1” F22 ISO 800
1/20 F5.6 ISO 800
1/60 F3.5 ISO 800

12. 1/30 f4.0 ISO 100
1/30 f4.0 ISO 400
1/30 f4.0 ISO 800
1/30 f4.0 ISO 1600

14. Quick Quiz
• What 3 things make up exposure?
• Is an aperture a circle, square or triangle
shape?
• What is the thing that increases or decreases
film/digital sensor sensitivity?
• What is the thing that opens and closes for a
specified amount of time?
• What does a light metre help you do?

16. Visual Elements
•
•
•
•
•
Line
Texture
Pattern
Shape
Form
• What is meant by line, texture and pattern in
an image?

17. Line

18. Texture
•

19. Pattern

20. Shape

21. Form