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Which resource used to be greatly consumed by the photo processing industry before the age of digital photography?

oil
silver
cadmium
zinc
Photography used 31% of the silver consumed in 1998. By 2010, it dropped to 7%.
Jason Beagley
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Answers by country

oil
silver
cadmium
zinc
answers
flagthe Netherlands
0%
70%
17%
11%
17
flagGreece
5%
58%
23%
11%
17
flagRepublic of Ireland
0%
52%
17%
29%
17
flagAustralia
7%
50%
21%
19%
110
flagGermany
5%
50%
42%
1%
52
flagPoland
7%
49%
29%
12%
12341
flagIndia
8%
48%
29%
11%
951
flagUnknown
8%
47%
28%
15%
46
flagthe United Kingdom
9%
46%
25%
17%
356
flagMalaysia
4%
46%
35%
13%
45
flagSingapore
8%
43%
32%
16%
37
flagNigeria
10%
42%
34%
12%
150
flagPakistan
14%
42%
24%
17%
119
flagFrance
11%
41%
23%
23%
17
flagGhana
0%
40%
44%
16%
25
flagthe United States
10%
39%
31%
16%
986
flagthe United Arab Emirates
16%
35%
22%
22%
31
flagCanada
8%
32%
31%
26%
73
flagSri Lanka
12%
31%
37%
12%
16
flagthe Philippines
15%
26%
38%
19%
89

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

What kind of furniture was specifically made for photographers in the mid-19th century?

wardrobes
tables
armchairs
sofas

In which year was the earliest surviving photograph created?

c. 1826
c. 1852
c. 1886
c. 1905

Which of the following camera lenses is typically more expensive?

f/1.8
f/2.4
f/2.8
f/3.5