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Encyclopedia > Efke

Efke is the brand name of films, photo papers, and chemicals manufactured by Fotokemika d.d., a company located in Samobor, Croatia. Image File history File links KB25. ... Undeveloped Arista black and white film, ISO 125. ... Until the advent of digital photographic processes, the sole meaning of Photographic Paper was paper coated with light-sensitive chemicals. ... Coat of arms Samobor is a city in Zagreb county, Croatia, population 36,206 (2001). ...


Products specification

The Efke films are "old-school" emulsions with very high silver content and as a result give a large exposure latitude and superior grayscale reproduction. The Efke 25, 50 and 100 products are made using the ADOX formulas that were first introduced in the 1950s. A. Two immisicble liquids, not emulsified; B. An emulsion of Phase B dispersed in Phase A; C. The unstable emulsion progressively separates; D. The (purple) surfactant positions itself on the interfaces between Phase A and Phase B, stabilizing the emulsion An emulsion is a mixture of two immiscible (unblendable) substances. ... General Name, Symbol, Number silver, Ag, 47 Chemical series transition metals Group, Period, Block 11, 5, d Appearance lustrous white metal Atomic mass 107. ... A photograph with an exposure time of 25 seconds In photography, exposure is the total amount of light allowed to fall on the sensor (photographic film or CCD) during the process of taking a photograph. ... In computer programming, ADOX relates to Microsofts ADO (Activex Data Objects) technology. ... // Events and No. ...


Unlike many modern black and white films the Efke products are true to their rated speed and unlike modern tabular crystal films, which are very unforgiving to use, even beginners can produce quality images. The nature of the product also easily allows large, grain free, enlargements to be made from negatives.


Efke films are coated in one layer, unlike most other films which are coated in multiple layers.


External links

  • Efke Film
  • Efke Film USA

  Results from FactBites:
 
Freestyle Photographic Supplies - Efke Film (88 words)
Efke films are manufactured using classic emulsions with very high silver content.
The Efke 25, 50 and 100 films are made using the ADOX formulas that were first introduced back in the 1950s.
Efke products are true to their rated speed.
Efke - Definition, explanation (191 words)
The Efke films are "old-school" emulsions with very high silver content and as a result give a large exposure latitude and superior grayscale reproduction.
The Efke 25, 50 and 100 products are made using the ADOX formulas that were first introduced in the 1950s.
Efke films are made using a single poured layer, where the film speed is determined on the basis of grain size.
  More results at FactBites »


 

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