1. A PHOTO II REVIEW Changing ISO and Exposure Compensation

2. Changing ISO How does the exposure rate change every time your ISO increases? Decreases?

3. Changing ISO f/1.4 f/2 f/2.8 f/4 f/5.6 f/8 f/11 f/16 f/22 B 2 1 ½ ¼ 1/8 1/15 1/30 1/60 1/125 1/250 1/500 1/1000 100 200 400 800 1600 3200 6400

4. Exposure Compensation f/1.4 f/2 f/2.8 f/4 f/5.6 f/8 f/11 f/16 f/22 B 2 1 ½ ¼ 1/8 1/15 1/30 1/60 1/125 1/250 1/500 1/1000 100 200 400 800 1600 3200 6400 ISO 200 f/2.8 at 1/125 = ISO 200

5. Why is this important? Exposure compensation in Depth of Field roll Changing ISO for Push and Pull Processing roll

6. Push Processing “Pushing” your film is shooting at a higher exposure index than the film speed. Exposure Index: the rate at which film is actually used, as it deviates from the actual ISO i.e., using ISO 400, exposing it like ISO 800

7. Push Processing Why push film? -Faster exposure rates -Increased grain -Increased developing = higher contrast -loss of shadow detail

8. Push Processing ISO 400 f/2.8 at 1/15 th sec. ISO 800 f/2.8 at 1/30 th sec. ISO 1600 f/4 at 1/30 th sec.

9. Push Processing Every time you push the film, you need to increase development (processing) by 50%. ISO 400 f/2.8 at 1/15 th sec. D-76 (1:1) 68F 10 mins ISO 800 f/2.8 at 1/30 th sec. D-76 (1:1) 68F ______ ISO 1600 f/4 at 1/30 th sec. D-76 (1:1) 68F _______

10. Pull Processing is shooting film at a lower exposure index than the actual film. i.e., ISO 400, exposing it like ISO 200

11. Pull Processing Why? -lower contrast -greater shadow detail -possible reduced graininess

12. Pull Processing ISO 400 f/2.8 at 1/15 th sec. ISO 200 f/___ at 1/15 th sec.

13. Pull Processing Every time you reduce your EI, you need to reduce your developing time by 20%. ISO 400 f/2.8 at 1/15 th sec. D-76 (1:1) 68F 10 mins ISO 200 f/___ at 1/15 th sec. D-76 (1:1) 68F _____