Convert Nanocandelas per square metre to Stilbs
Convert Nanocandelas per square metre (ncd/m²) to Stilbs (sb) instantly and accurately.
Conversion Formula
sb = ncd/m² × 1.000000000e-13
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 Stilbs
The stilb (sb) equals 1 cd/cm² = 10⁴ cd/m². The CGS luminance unit. A candle flame has luminance ~0.5-0.6 sb; a frosted incandescent bulb ~10 sb; a xenon short-arc lamp up to 170 000 sb. Named from the Greek στίλβω (to glitter). Found in pre-1970 photometry texts. 1 sb = 10⁴ cd/m².
Quick Reference Table
| Nanocandelas per square metre (ncd/m²) | Stilbs (sb) |
|---|---|
| 1 ncd/m² | 1 × 10-13 sb |
| 2 ncd/m² | 2 × 10-13 sb |
| 5 ncd/m² | 5 × 10-13 sb |
| 10 ncd/m² | 1 × 10-12 sb |
| 25 ncd/m² | 2.5 × 10-12 sb |
| 50 ncd/m² | 5 × 10-12 sb |
| 100 ncd/m² | 1 × 10-11 sb |