Exposure

1. Exposure Gray Card and White Balance

2. Purpose: • To explore exposure in both camera. • To understand white balance. • To learn to download images. • To learn to save to server. • To be introduced to Bridge CS3 and PhotoShop CS3

3. Goals • To understand and control light using a camera. • Know the three variables effecting exposure. • Know and be able to use a photographic gray card. • Understand and be able to use bracketing techniques. • Understand the terminology used by photographers describing exposure and white balance. • Understand the different qualities of natural and artificial light. • Understand how the temperature of a light source effects the quality of light. • Understand and be able to use white balance to control the qualities of light. • Understand and be able to obtain metadata in Adobe CS3 Bridge and PhotoShop. • To create a contact sheet using Adobe Bridge and PhotoShop CS3. • To create a print representing a balance of highlights and shadows demonstrating proper exposure.

4. Subject: Human face with a gray card next to it.

5. Directions: • Set your camera’s white balance to the daylight setting (sun mode). • You will be taking a series of photos all photos are to have these characteristics. • All photos with an ISO 800 (indoor) setting. • All photos so they show an 18% gray card and a face. • Take a series of photos in three different settings; • Under florescent light (like the classroom), • Under direct daylight (sun), • Under trees (in shade) during daylight, • Under incandescent light (standard household light bulb). • In each of the 4 locations take 5 photos bracketing your exposure. • +2 ( four times the amount of light) • +1 (twice the amount of light) • Normal (according to the light meter) • -1 (half the amount of light) • -2 (one forth the amount of light) • Record your exposure on the exposure log. • You will have taken 20 photos when you are done.

6. Bracketing: Purpose: • To vary settings to insure proper lighting and exposure and allow for a variety of lighting conditions.

7. Stop of Light One “Stop of Light” equals One change in shutter speed (+ or -) OR One change in ƒ/stop (+ or -) OR One change in ISO (half or double)

8. Stop of Light • It is an amount of light. • Each stop is a doubling or halving of the amount of light.

9. Bracketing • Normal — what the light meter says • +1 stop (double the amount of light) • -1 stop (half the amount of light) Normal

10. Bracketing • Normal — what the light meter says • +1 stop (double the amount of light) • +2 stops (4x the amount of light) Normal +1x +2x

11. Bracketing • Normal — what the light meter says • -1 stop (half the amount of light) • -2 stops (1/4 the amount of light) Normal -1x -2x

12. Exposure Log: • Completed Exposure Log

13. Bracketing • +2 stops (4x the amount of light) • +1 stop (double the amount of light) • Normal — what the light meter says • -1 stop (half the amount of light) • -2 stops (1/4 the amount of light) +2x +1x Normal -1x -2x ƒ/4 @ 1/250 ƒ/5.6 @ 1/250 ƒ/8 @ 1/250 ƒ/11 @ 1/250 ƒ/16 @ 1/250

14. Bracketing +2x ƒ/22 @ 1s • +2 stops (4x the amount of light) • +1 stop (double the amount of light) • Normal — what the light meter says • -1 stop (half the amount of light) • -2 stops (1/4 the amount of light) +1x ƒ/22 @ 1/2 Normal ƒ/22 @ 1/4 -1x ƒ/22 @ 1/8 -2x ƒ/22 @ 1/15

15. Requirements —What to turn in: • 20 digital images on server • Place in purple folder • 1 contact sheet, 20 images • 4 prints • 1 Each lighting type • Should be best exposure • Self-evaluation sheet • Exposure log

16. Exposure Log: • Completed Exposure Log

17. Requirements: • Self-evaluation Sheet (there are 2 sides) • Fill in top portion completely

18. Grading • This project is worth 100 points