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Die ADOX CHS Filme werden heute noch nach den Rezepten der legendären ADOX KB Filme hergestellt. ADOX führte mit diesem Film als weltweit erster Hersteller die Dünnschicht- Technologie ein welche dem Film seine hervorragende Schärfe verleiht. Es gibt heute kaum ein klassischeres Filmmaterial als die ADOX CHS Filme. Mit diesen Materialien fangen Sie den Look der Bilder aus der Mitte des zwanzigsten Jahrhunderts ein. Der eigentliche Vorteil dieser Emulsionen liegt aber nicht in einem einzigen messbaren technischen Parameter wie Auflösung oder RMS Körnung sondern in der Gesamtheit Ihrer Eigenschaften: Ihrer Bildwirkung.
ADOX CHS Filme liefern Bilder von höchstem Grauwertreichtum, bester Plastizität, hohem Detailkontast und maximalem Belichtungsumfang. Bilder die Sie mit einem ADOX CHS machen leben. Alles was moderne Filme der Feinstkörnigkeit und Empfindlichkeitssteigerung geopfert haben hat der ADOX CHS bewahrt.
Dadurch sind diese Emulsionen als Roll- und Planfilm- Material oftmals modernen Emulsionen überlegen. Die Feinkörnigkeit ist bei großen Filmformaten kein vorrangiges Kriterium mehr und die Grauwerte, der Belichtungsumfang und die hohe Plastizität des ADOX CHS verleihen Ihren Bildern Tiefe und eine einzigartige Bildwirkung.
Die Orthopanchromatische Sensibilisierung erzeugt eine ganz eigene Grauwertübertragung die sich deutlich von den Superpanchromatischen Emulsionen der heutigen Zeit absetzt. Der Film trennt hervorragend zwischen blau und rot was zu einem gesteigerten visuellen Detailkontrast führt.
Die heterodisperse Einschicht-Emulsion hat eine gleichmässige Verteilung von unterschiedlich großen Kubischen Silberhalogeniden welche dem Film sein einzigartiges Klassisches Filmkorn verleihen. Die Silberhalogenide absorbieren das Licht einzeln und es treten keine Schärfeverringernden Licht- Streuungen zwischen gestapelten Flachkristallen oder multiplen Schichten auf. Diese Technologie verleiht ihm zudem einen fast nicht vorhandenen Schwarzschild-Faktor (bei 100 Sekunden Faktor 1,5x) was die effektive Empfindlichkeit bei der Verwendung langer Belichtungszeiten vervielfacht und dieses Material ideal für Langzeit-Belichtungen (z.B. in der Architektur-Fotografie) macht.
Die Filme werden nach alter Tradition in Manufaktur-ähnlicher Arbeitsweise in Kleinserien gefertigt und die Emulsionen werden von Hand in 50 Liter Kübeln angesetzt. Das erlaubt die Fertigung von Kleinserien und so sind wir in der Lage auch ausgefallene Filmtypen wie den CHS 25 oder CHS 50 stets frisch anzubieten.

ADOX® CHS 25 • CHS 50 • CHS 100 Films (was efke®)
These films are old shool emulsions which are still produced according to the old ADOX formulations which were introduced in the 1950s. For years we have been selling this film under the efke label, now it gets its original name back: ADOX. Using ADOX CHS films your view of the world is the one of the 1950s and 1960s. It has a great tonal range, colour separation and modulates differently from modern films. ADOX CHS films have their own feel and look to them. Especially when pictures are dominated by blue sky the areas in the sky produce a very nice darker grey compared to more modern films giving the images a different depth and look.
Samobor near Zagreb - Home of the ADOX CHS Films.

These films were introduced by ADOX in the 1950s and quickly became the preferred films for reporters. In those times when lightmeters were inaccurate or very expensive they preferred the wide exposure latitude of the 50 and 100 ASA films.
The film has an ultra high silver content enabling it to produce richest grey scales and many tonal differences between black and white.
Pictures captured with ADOX film „come to life“ in the print.
„ADOX adding the grey to black and white“.
If developed in sharp working developers such as ADOX APH 09 the film develops a visible edge effect and very high accutance and detail depth.
Because of its low diffusion single layer technology the film is ultra sharp compared to modern multi layer films where the light is diffused when penetrating through the different layers.
CHS stands for Cubiccrystal Heterodispers Single- Layer, which means the emulsion is made up of classic cubic crystals which are mixed in different sizes and coated in one layer.
The 25 speed film is the finest grain film with a classical behavior of low speed films.
This means that the film is generous when underexposed or with regards to reciprocity failure but can´t cope with over exposure because it can´t shield itself from too much light.
Also it´s latidute is not as high as those of faster films.
For beginners we recommend the ADOX CHS 50 or 100. The 50 has almost the flexibility of the 100 yet almost as fine a grain as the 25.
This makes the ADOX 50 the preferred film out of the range. It has finer grain and better tonalities than modern 100 ASA films, yet almost the same effective speed in certain developers.
The CHS 100 is the highest speed film which can be made based on this old technology. In the 1950s it was called a „high speed film“.
Beeing the fastest film it has the widest exposure latitude and contrast range but also develops the largest film grain out of the ADOX family.
So especially with this film you might want to use ADOX ATM49 developer because it will yield a much smaller grain than Rodinal or APH09.
If you use Pyro developers the ADOX CHS 100 can reproduce almost one more full zone of copy range compared to more modern films.
This makes it an excellent sheet film as grain does not matter so much in a large format.
ADOX films are supplied as KB, 120 and sheetfilms. We even produce unusual film sizes like 127 or resized 620.
All rollfilms (120 films) are supplied in dustproof light protecting black plastic containers.

Please put used films back into these containers to avoid penetration of light.
Always keep your baths constant at 20oC when processing films out of the CHS range.
Old fashioned films will show effects like shrinkle grain when processed faulty. Many modern films are to a high degree resistant to this.
Please prewash sheetfilms to evenly dissolve the supercoating to avoid developer-streaks.
Please handle the wet emulsion with extreme care. It is softer than the emulsion of modern films. If necessary please add a hardening bath (either put some hardener in the stop bath/fixer or dilute 5ml of hardener to 1 Liter of water and pre-harden the sheetfilms before putting them in the tray. Please readjust your developing time after pre-hardening.