Efke

Efke was the photographic-film and darkroom-materials brand of Fotokemika Zagreb d.d., a manufacturer based in Samobor, Croatia. Its portfolio included black-and-white negative films, photographic papers, processing chemicals, infrared film, color negative film, and color reversal film. The brand became particularly associated with traditional, high-silver emulsions rather than the fine-grain tabular-crystal formulations used by many modern film manufacturers. Efke's best-known black-and-white products included Efke 25, Efke 50, and Efke 100. These films were made using ADOX formulas first introduced in the 1950s. Their relatively high silver content provided broad exposure latitude and pronounced grayscale reproduction, characteristics valued by photographers who wanted forgiving negatives and the ability to make large enlargements. The films were coated in a single emulsion layer, which distinguished them from many contemporary multilayer products. This construction helped produce a thin, transparent film base and made negatives comparatively easy to inspect, but it also made the emulsion more vulnerable to physical damage while wet and could make the film curl more readily. Efke also occupied unusual niches in the film market. It was the only manufacturer producing 127-format film between Kodak's discontinuation of that format in 1995 and the arrival of another Canadian producer in 2006. Its Efke IR820 infrared film was notable for useful sensitivity beyond 750 nanometres and extending toward 820 nanometres, a capability that became scarce after other infrared films, including Kodak HIE, disappeared. Efke's color products included efkecolor in ISO 100 and ISO 400 versions during approximately 1986–1992, spektar in ISO 100, 200, and 400 versions from roughly 1992 to 2009, and HG100 from approximately 1996 onward for an uncertain period. The brand also sold efkechrome, a 100 ISO color-reversal film, between approximately 1982 and 1999. Information about these color products is limited because they were discontinued relatively quickly and are now rare. Efke's history was tied closely to Fotokemika's industrial decline after the breakup of Yugoslavia. Privatization and the subsequent sale of equipment and real estate to Western companies reduced the company's productive capacity and led to substantial layoffs during the 1990s and 2000s. Fotokemika ultimately entered bankruptcy. All production ceased on 30 August 2012. For a short period afterward, the company continued as a distributor of medical films and related materials made by other manufacturers, but Efke manufacturing did not resume. The brand and its manufacturer retained a following among analog photographers because of the distinctive look and technical behavior of the films. In late 2020, Croatian photographer Silvester Kolbas organized an exhibition at Zagreb's Museum of Technology Nikola Tesla devoted to Fotokemika, its Efke products, and the factory's industrial heritage. The exhibition included surviving equipment and products from the abandoned facilities, together with photographs made using expired Efke black-and-white film.

Efke was the brand name used by Fotokemika Zagreb d.d. for photographic films and other darkroom materials manufactured in Samobor, Croatia. The available historical record presents Efke primarily as a product brand within Fotokemika's broader photographic-materials business rather than as an independently incorporated company. Its portfolio covered black-and-white films, photographic papers, chemicals, infrared film, color negative film, and color reversal film. The brand's most distinctive legacy came from its black-and-white emulsions. Efke 25, Efke 50, and Efke 100 used ADOX formulas originating in the 1950s. Their high silver content gave them substantial exposure latitude and a characteristic grayscale response that differed from many modern tabular-crystal films. The films were also manufactured with a single emulsion layer. That construction made the material thin and relatively transparent, which aided inspection of negatives, while creating practical handling issues: the emulsion could be damaged more easily before it had dried, and the thinner base could curl. Photographers could use hardening fixer to provide additional protection during processing. Efke maintained several specialist positions in the analog-film market. It continued producing 127-format film after Kodak discontinued that format in 1995, making Efke the only manufacturer of 127 film until another Canadian producer entered the market in 2006. Efke IR820 was also notable among infrared films because its useful sensitivity extended beyond 750 nanometres toward 820 nanometres. This became an important differentiator as other infrared products, including Kodak HIE, were discontinued. The company also produced a succession of color materials. Efkecolor was sold in ISO 100 and ISO 400 versions approximately from 1986 to 1992. Spektar followed in ISO 100, 200, and 400 versions from about 1992 to 2009, while HG100 was available from approximately 1996 for an uncertain duration. Efkechrome, a 100 ISO color-reversal film, was sold roughly from 1982 to 1999. These color products are now uncommon, and surviving documentation is limited compared with the better-known black-and-white range. Efke's decline was inseparable from the political and economic transformation surrounding the breakup of Yugoslavia. During the privatization process, Fotokemika's equipment and real estate were sold to Western companies, while many employees were laid off in the 1990s and 2000s. The loss of industrial capacity contributed to the company's eventual bankruptcy. Fotokemika ceased all production on 30 August 2012. After the manufacturing shutdown, it operated briefly as a distributor of medical films and materials made by other manufacturers, but this did not restore Efke production. The brand survived principally through its remaining film stock, collector interest, and the continued use of expired negatives by analog photographers. In late 2020, photographer Silvester Kolbas presented an exhibition at the Museum of Technology Nikola Tesla in Zagreb. The exhibition focused on Efke, Fotokemika, and the abandoned factory's industrial heritage, displaying old equipment and products and showing images made with expired Efke black-and-white film. This documentation helped preserve the memory of a regional photographic manufacturer whose products had occupied distinctive technical niches in the international film market.

• 2020

  Fotokemika heritage exhibition

  [1]Efkeen.wikipedia.org

  An exhibition at Zagreb's Museum of Technology Nikola Tesla presented Efke and Fotokemika equipment, products, and photographs made with expired Efke film.

• 2012

  Fotokemika ends production

  [1]Efkeen.wikipedia.org

  Fotokemika ceased all production on 30 August 2012, ending the manufacturing basis of the Efke brand.

• 1995

  Efke becomes the sole 127-format film manufacturer

  [1]Efkeen.wikipedia.org

  After Kodak discontinued 127-format film, Efke was the only manufacturer producing the format until another Canadian company began making it in 2006.

• 1992

  Spektar color-film range appears

  [1]Efkeen.wikipedia.org

  The Spektar range was sold in ISO 100, 200, and 400 versions from approximately 1992 to 2009.

• 1986

  Efkecolor introduced

  [1]Efkeen.wikipedia.org

  Efkecolor color negative film was available in ISO 100 and ISO 400 versions approximately from 1986 to 1992.

• 1982

  Efkechrome color-reversal film period begins

  [1]Efkeen.wikipedia.org

  Efke sold efkechrome, a 100 ISO color-reversal film, approximately from 1982 to 1999.

• 1950

  Origins of the ADOX formulas used in Efke black-and-white films

  [1]Efkeen.wikipedia.org

  The formulas later used for Efke 25, Efke 50, and Efke 100 were first introduced in the 1950s.

A traditional analog-photography brand centered on high-silver emulsions, broad exposure latitude, classic grayscale rendering, and specialist formats such as 127 and infrared film.

• Black-and-white photographic film

  Efke 25

  Efke 25 was one of the brand's traditional black-and-white films and used an ADOX formula first introduced in the 1950s. Like the wider Efke black-and-white range, it was associated with high silver content, broad exposure latitude, and strong grayscale reproduction. Its single-layer emulsion required careful handling, especially while wet, but supported the distinctive rendering and enlargement characteristics valued by traditional darkroom photographers.

• Black-and-white photographic film

  Efke 50

  Efke 50 was a medium-speed black-and-white film based on the same family of historic ADOX formulas as Efke 25 and Efke 100. The product was known for forgiving exposure behavior and high-silver tonal reproduction rather than the highly optimized fine-grain characteristics of newer tabular films. Its thin, single-layer construction made processing technique important because the wet emulsion was comparatively easy to damage.

• Black-and-white photographic film

  Efke 100

  Efke 100 was the fastest of the principal Efke black-and-white films identified in the reference material. It used an ADOX formula dating from the 1950s and shared the line's high-silver character, broad exposure latitude, and pronounced grayscale reproduction. The film's thin base and single-layer emulsion gave it a distinctive handling profile, including easier curling and increased vulnerability before drying.

• Infrared photographic film

  Efke IR820

  Efke IR820 was the brand's infrared film. It was notable for useful infrared sensitivity beyond 750 nanometres, extending toward 820 nanometres, making it unusually capable among films available after competing infrared products had disappeared. Its specialist nature gave Efke a distinctive place in experimental and infrared photography, although manufacturing ended with Fotokemika's production shutdown.

• Color negative photographic film · 1986

  Efkecolor

  Efkecolor was a color photographic-film line sold in ISO 100 and ISO 400 versions approximately from 1986 to 1992. It is less extensively documented and considerably rarer today than Efke's black-and-white products. The line illustrates that Fotokemika's brand portfolio extended beyond traditional monochrome materials into color negative photography.

• Color negative photographic film · 1992

  Spektar

  Spektar was a later Efke color-film range offered in ISO 100, 200, and 400 versions. It was sold approximately from 1992 to 2009. Because the color products were discontinued comparatively quickly and surviving documentation is limited, detailed technical and marketing information is scarce.

• Color negative photographic film · 1996

  HG100

  HG100 was an Efke color-film product reported as available from approximately 1996 for an uncertain period. It carried an ISO 100 rating. The product is now rare and has little readily available historical documentation.

• Color reversal photographic film · 1982

  Efkechrome

  Efkechrome was a 100 ISO color-reversal film sold approximately from 1982 to 1999. It represented Efke's participation in the slide-film market, although the product became rare after discontinuation and is less documented than the brand's monochrome films.

• 2012

  Manufacturing shutdownOther

  Background

  Fotokemika's decline followed privatization, the sale of equipment and real estate, workforce reductions, and eventual bankruptcy.

  Action taken

  Fotokemika ceased all production on 30 August 2012, ending manufacture of Efke photographic products.

  Aftermath

  The company briefly operated as a distributor of medical films and materials made by other manufacturers, while Efke continued only as a discontinued brand associated with remaining stock and historical use.

  Source

1. 1Efkeen.wikipedia.org