Case Study/ Outline

I. Introduction
A. Lens : severe factor for photography.
B. Basic Introduction of lens mechanism,
1. Similar to human eye.
2. Explain how lens works with the illustration and the picture of a lens. ( ½ cutaway)



II. Understanding focal length.
A. Introduction of focal length.
1. Controls Angle of view and focal point.
i. comparison between wide angle lenses and telephoto lenses.

B. Focal length influences the perspective of the picture.
1. y＝f×tanθ
2.Show the chart of the focal length and perspective.



III. Understanding aperture.
A. Fstop : Controls amount of light.
1. F stop chart and influences of each number to other factors.

( Shutter speed/ depth of felid.)

2. lenses with specific Fstop and its function.  ( with a chart.)

B. Fstop and Focal Length.

IV. Different kinds of lenses and its unique features and mechanisms.
A. Macro Camera Lenses
B.Wide Angle Lenses
C. Telephoto Lenses
D. Fish eye Lenses



V. Digital Camera Lens vs Analog Camera Lens.
A. Difference between each camera and how lenses work.

B.. Issues with Digital Camera.

1. Difficult to control Focal Length.
2. Can’t handle wide angle lens well.



VI. Conclusion