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
Sepia toning enhances archival qual­i­ties of the photos. Chem­i­cals are used to convert the metallic silver in the print to a sulfide com­pound, which is at least 50% more stable than silver.

Answers distribution

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
answers
flagAustria
7%
69%
15%
7%
13
flagItaly
8%
68%
16%
8%
25
flagthe Netherlands
12%
66%
7%
12%
39
flagBelgium
0%
58%
0%
41%
12
flagGermany
10%
57%
18%
12%
116
flagNorway
7%
57%
17%
14%
28
flagPoland
12%
56%
14%
15%
11058
flagthe United Kingdom
15%
50%
12%
20%
254
flagRepublic of Ireland
20%
50%
10%
20%
30
flagRussia
15%
47%
10%
21%
19
flagUnknown
13%
46%
12%
25%
462
flagSweden
21%
42%
15%
15%
19
flagFrance
23%
38%
9%
28%
21
flagPakistan
23%
35%
17%
23%
17
flagUkraine
12%
33%
21%
33%
33
flagAustralia
16%
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24%
28%
25
flagthe Philippines
12%
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25
flagCanada
15%
31%
18%
31%
32
flagthe United States
19%
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16%
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293
flagIndia
15%
28%
21%
32%
208

Gender

men50%
women59%
sepia process was cheaper than black and white
15%
12%
for improved resistance
50%
60%
it is simply ageing of paper
14%
12%
it is the effect of exposition to sunlight
20%
14%

Details

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