Only, it takes anywhere between 24 hours and three days to achieve the old-world effect that an Instagram makeover would yield in less than a second.
"Getting your pictures printed from your home printer is easy. But people want something special, something that cannot be duplicated," says Chawla.
The instructor had a point. "Each print is a limited-edition print," says Chawla, adding that the finished product depends on how strong the sun is. "The results are never the same."
Chawla has tried his hand at two techniques. The first method, called cyanotype, involves mixing two chemicals - ferric ammonium citrate and potassium ferricyanide - with distilled water. The orange-ish solution is brushed across a medium - which could be anything from a water colour paper to a cotton cloth. Chawla then dries the surface using a hair dryer, puts the negative on top of it, and rushes to his terrace to expose it under the sun. "It takes 20 to 25 minutes for exposure, if the sun is strong," says Chawla, who sometimes has to wait in anticipation on his terrace for two to three hours on wintry, sunless days.
The other method involves coating the medium with albumen mixed with silver nitrate, a harsh chemical that Chawla uses only after wearing gloves.
"The results are magical," says Chawla, who sells a 4-by-6 inch print prepared using the cyanotype technique for Rs 1,000-1,500.
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