Test of Adox CHS 100 II Film: A Fine-Grained Reversal Black & White
The Adox CHS 100 II film is part of the revival of traditional black-and-white emulsions. Inspired by Adox formulas from the 1960s, it appeals to analog photographers seeking a classic look rich in nuance and character.
It is a reversal film, meaning it can be processed into black-and-white slides.
In this article, we test this film—technical characteristics, aesthetic rendering, recommended uses, and limitations—based on manufacturer data.
Overview of Adox CHS 100 II Film
Manufactured by Adox / Fotoimpex in Germany, CHS 100 II is an orthopanchromatic black-and-white film with classic grain and sensitivity optimized for gray-scale separation at ISO 100. It is a modernized version of the original CHS emulsion, featuring a more robust polyester base and improved stability.
Key Features
- 🎞️ Black & white reversal film
- 📸 Speed: ISO 100
- 🧪 Standard black-and-white negative processing / positive processing possible in a specialized lab such as Studio Baxton
- 🧵 Polyester base (high strength and archival quality)
- 🎨 Classic rendering inspired by 1960s films
👉 Available in 35mm and 120 medium format, making it versatile for different practices.
Rendering & Aesthetics: A Timeless Black & White
Grain
- Fine to moderate grain
- Organic texture visible in enlargements
- “Vintage” aesthetic appreciated in artistic photography
CHS 100 II favors a natural rendering rather than clinical sharpness.
Contrast & Tonality
- Moderate contrast
- Excellent gray separation
- Soft, gradual highlights
Unique Spectral Sensitivity
CHS 100 II is sometimes described as orthopanchromatic, with reduced sensitivity to reds and a response curve between blue and green. This produces deeper skies with well-defined clouds and balanced tonal reproduction for portraits. It can result in :
- More dramatic skies
- Slightly lighter skin tones
- Brighter foliage
These characteristics contribute to its distinctive look.
Exposure Latitude & Behavior
Like many traditional black-and-white films, CHS 100 II offers comfortable latitude:
- Tolerates slight overexposure (+1 stop)
- Retains shadow detail
- Allows fine control during development
👉 his makes it a good choice for photographers who develop their own film.
Ideal Uses for Adox CHS 100 II
Landscape Photography
- Nuanced sky rendering
- Good separation of planes
- Subtle grain for prints
Artistic Portraiture
- Soft skin tones
- Timeless mood
- Ideal for creative projects
Architecture & Urban Photography
- Moderate contrast enhancing textures
- Graphic rendering of lines and materials
Exposure Tips
To get the most from CHS 100 II :
- Rate at ISO 100 for balanced results
- Slightly overexpose to soften contrast or reduce development time by ~10%.
- Use a yellow or orange filter to enhance skies
⚠️ In 35mm format, ADOX CHS 100 II has two anti-halation layers (between the emulsion and base, and on the reverse side). The rear anti-halation layer also reduces curling and light piping. The film should be protected from bright light that may fog the first frames—load in shade or subdued light
Limitations to Consider
Despite its strengths, this film has some constraints:
- Lower native contrast than some modern films
- Different red sensitivity compared to standard panchromatic films
- Polyester base can be harder to handle
These are not flaws but part of its identity.
Who Is This Film For?
Adox CHS 100 II is especially suited to:
- Photographers who love classic rendering
- Artists seeking expressive black & white
- Film photography students
- Home darkroom practitioners
Verdict: Should You Try Adox CHS 100 II?
CHS 100 II is not a “neutral” black-and-white film. It has a strong visual signature inspired by historic emulsions, appealing to photographers in search of authenticity.
Strengths
✔ Unique vintage rendering
✔ Beautiful gray richness
✔ Durable base and reliable archiving
✔ Ideal for artistic projects
Points to Consider
✖ Unique spectral sensitivity
✖ More delicate handling on reels
✖ Less “modern” look than some contemporary films
Conclusion
Adox CHS 100 II is more than just a black-and-white film—it is a bridge between photographic history and contemporary practice. Its classic rendering, tonal richness, and character make it an inspiring choice for photographers who want to slow down and rediscover the magic of traditional black & white.
🎞️ With CHS 100 II, every image feels like it comes from another era—while remaining deeply current.
Buy the Adox CHS 100 II film in our online shop
