Which of the following camera lenses is typically more expensive?

f/1.8

f/2.4

f/2.8

f/3.5

The smaller the f-number, the larger relative aperture there is, and that means more light for the exposure. Each aperture has half the light gathering area of the previous one.

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Bob Mical

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Answers by country

Republic of Ireland

94%

Austria

72%

18%

the Netherlands

63%

18%

the United Kingdom

55%

10%

27%

102

Switzerland

55%

14%

22%

Australia

54%

11%

25%

Germany

53%

13%

24%

223

Greece

52%

28%

14%

the United States

50%

13%

27%

324

Poland

49%

14%

26%

9686

India

47%

12%

11%

28%

174

the Philippines

44%

32%

20%

Unknown

42%

15%

36%

Canada

41%

10%

41%

Estonia

41%

58%

Who should you expect to show stronger red-eye effect?

blue-eyed people

brown-eyed people

elders

there is no difference

Why were photographic prints sepia toned?

sepia process was cheaper than black and white

for improved resistance

it is simply ageing of paper

it is the effect of exposition to sunlight

World's fastest high-speed cameras were built to take photos of specific objects. What kind of objects?

bullet shots

rocket launches

nuclear bomb explosions

sound waves

What term would photographers use to describe the quality of blurred part of the photo?