Quiz #1 (Take Home) Spring 2010

Name:________________________________


ART 170Z

Spring 2010

Randy Nelson



Quiz #1

Due Wednesday May 19, 2010

10 points



A. Camera Mathematics Concepts

Select from the following camera settings for the following questions (3 points):

f2.8, f4, f5.6, f8, f11, f16, f22; 1/30, 1/60, 1/125, 1/250, 1/500, 1/1000, 1/2000



Which shutter speed is most likely to freeze motion?

Which shutter speed is most likely to blur motion?

Which shutter speed is the slowest recommended shutter speed to hand-hold a camera with a normal lens?

Which aperture provides for the shallowest depth-of-field?

Which aperture provides for the greatest depth-of-field?

Which of the above settings would be the approximate starting BDE settings for

a film with an ISO rating of 100.

B. Math Essay (2 points)

Describe the units of measurement used for camera shutters, apertures, and sensor or film sensitivity.





C. Perception Essay (2 points)

1. Question Compare and contrast photographic vision and human vision. (2 points)

In other words, what are some differences between how cameras typically see and how humans see?



D. Short Answer (3 points)







1. An important adjustment on digital cameras that effects the color of photographs is called what?

2. What are some lighting situations where it is useful?





2. What is the aspect ratio of most compact digital cameras?





3. What is the aspect ratio of most digital SLRs?





4. Dpi is a measurement that means?







5. Which file format contains the most digital information?

a. JPEG

b. BMP

c. TIFF

d. RAW







6. What is an 18 percent reflectance gray card?



7. On cloudless days, how reliable is the sun as a constant, predictable source of light?







8. When working in the digital darkroom your most active color mode will be?







9. Digital information about an image that accompanies a digital image is called

a. logical inferences

b. basic daylight exposure

c. metadata

d. camera obscura



10. When printing a high quality print with an inkjet printer your print would be best at…

a. 72.

b. 100.

c. 200.

d. 300.









11. The dpi of photos used on a web site is usually around?

a. 300 dpi.

b. 200 dpi.

c. 100 dpi.

d. 72 dpi.



12. When sending photos via email you should usually use what file format?

a. TIFF

b. JPEG

c. BMP

d. GIF