By the end of class students will be able to calculate the exposure changes described below:
- Increase the exposure by 2 stops: f8.0 = 4.0
- Decrease the exposure by a stop: 1/30 shutter speed = 1/60
- Decrease the exposure by 4 stops: ISO 1600 = 100
- Increase the exposure by 3 stops: 1/160 = 1/20
- Decrease the exposure by 2 stops: f5.6 aperture = 2.8
- Increase the exposure by a stop: ISO 200 = 100
- Describe the change in exposure: shutter speed 1/400 to 1/100 = increase by 2 stops
- Describe the change in exposure: ISO 400 to 100 = increase by 2 stops
- Describe the change in exposure: f2.0 to f5.6 = decrease by 3 stops
- Describe the change in exposure: ISO 800 to 1600 = decrease by 1 stop
- Describe the change in exposure: f16 to f4.0 = increase by 4 stops
- Describe the change in exposure: shutter speed 1/1000 to 1/4000 = decrease by 2 stops
- A photographer is currently shooting with an aperture of 1.4, but because shallow DOF issues he needs to stop down to 5.6. His current shutter speed is 1/400. What should his shutter speed be changed to in order to retain the same overall exposure? = shutter speed 1/25
- Sally is currently shooting at an ISO of 1600, but because of noise issues she would like to lower that down to ISO 400. This would be an exposure change of how many stops? = 2 stops decrease
- John has his aperture set to 4, but he then turns of half the light in his scene. What would his new aperture setting need to be to retain the same level of exposure? = F2.8
- Amanda would like to add motion blur to her photograph. Currently her shutter speed is set to 1/80, but then lowers it to 1/10. How many stops of an exposure change would this represent? = 3 stops
- Tony takes action/sports photos. Give an example of a shutter speed that would work for that subject matter. = 1/1000