ISO 12233 Resolution Test Chart
A reference resolution test chart compliant with ISO 12233 — a full chart family (0.5x–8x, standard, enhanced, cine, matte and glossy variants) for objectively assessing horizontal and vertical camera and lens resolution.
- Compliant with ISO 12233 "Photography – Electronic still picture imaging – Resolution measurements"
- Manufacturing precision — only 0.1 mm error when measuring a 20 cm height on the 1x version
- Full size family from 0.5x to 8x, plus 0.75x–4x digital-cine variants
- Surface options — semimatt, matte, high-glossy and glossy — for reflective and transmissive setups
The ISO 12233 Resolution Test Chart is a standard reference chart used to aid measurement of the vertical and horizontal resolution of real-world camera shots. Testing is carried out at a fixed shooting angle and under fixed conditions, and the resolution calculation — vertical and horizontal — is performed with HYRes software. 3nh offers a one-stop solution covering the chart itself, a dedicated light source and calculation software.
Assessing a digital camera differs from assessing other products — it cannot be reduced to objective data read from software alone, as with laptops or DIY electronics. It requires combining objective measurement data with hands-on evaluation of the resulting images by experienced reviewers. The chart complies with ISO 12233, “Photography — Electronic Photographic Image — Measurement,” and on the 1x version the error in measuring a 20 cm height is only 0.1 mm, giving it nearly all the characteristics found across most resolution charts.
Key features
| Variant family | Sizes and description |
|---|---|
| Regular ISO 12233 | 0.5x (10×17.8 cm), 1x (20×35.6 cm), 2x (40×71.1 cm), 4x (80×142.2 cm), 8x (160×284.4 cm) — semimatt, printed on photographic paper |
| Enhanced ISO 12233 | same 0.5x–8x sizes, semimatt, printed on photographic paper |
| Digital Cine ISO 12233 | 0.75x (15×36 cm), 1.5x (30×72 cm), 3x (60×144 cm) semimatt, and 4x (80×192 cm) semiglossy |
| Matte version | 0.5x/1x/2x/4x, matte (low contrast), printed on photographic paper |
| High Glossy version (transmissive) | 0.1x, 0.5x, 1x, high glossy (high contrast), image on opaque film |
| Glossy/Semiglossy version (transmissive) | 0.5x/1x/2x/4x, chrome on glass |
| Standard compliance | ISO 12233 “Photography – Electronic Photographic Image – Measurement” |
| Accuracy | 0.1 mm error when measuring a 20 cm height (1x version) |
| Calculation software | HYRes — vertical and horizontal resolution |
Applications
The chart is used to calibrate and test cameras, lenses and vision systems — objectively assessing vertical and horizontal resolution in lab and production settings, in both reflective (reflective light box) and transmissive (transmissive light box) configurations.
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Datasheet (PDF) — coming soon