Convert Nanocandelas per square metre to Skots
Convert Nanocandelas per square metre (ncd/m²) to Skots (sk) instantly and accurately.
Conversion Formula
sk = ncd/m² × 3.141592654e-6
About Nanocandelas per square metre
The nanocandela per square metre (ncd/m²) equals 10⁻⁹ cd/m². Represents luminance at the threshold of cooled photomultiplier tubes and avalanche photodiode detectors. The darkest OLED black levels (~10⁻⁴ cd/m²) are still five orders of magnitude brighter; this unit is used in single-photon counting photometry. 1 ncd/m² = 10⁻⁹ cd/m².
About Skots
The skot (sk) equals 10⁻³/π cd/m² ≈ 3.183×10⁻⁴ cd/m², defined as one-thousandth of an apostilb. A legacy photometric unit from early German-language vision science. The dark-adapted human eye threshold is around 3×10⁻⁴ cd/m², close to 1 sk. Now obsolete; replaced by cd/m² in SI photometry. 1 sk = 10⁻³/π cd/m².
Quick Reference Table
| Nanocandelas per square metre (ncd/m²) | Skots (sk) |
|---|---|
| 1 ncd/m² | 3.142 × 10-6 sk |
| 2 ncd/m² | 6.283 × 10-6 sk |
| 5 ncd/m² | 1.571 × 10-5 sk |
| 10 ncd/m² | 3.142 × 10-5 sk |
| 25 ncd/m² | 7.854 × 10-5 sk |
| 50 ncd/m² | 0.00015708 sk |
| 100 ncd/m² | 0.000314159 sk |