Convert nepers to stop (photographic)s
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Show this value in all 10 ratio & decibels units
- Ratios × 2.718 281 828 46
- Decibel (power)s dB 4.342 944 819 03
- Decibel (amplitude)s dB 8.685 889 638 07
- Bels B 0.434 294 481 903
- Nepers Np 1
- Decades dec 0.434 294 481 903
- Octaves oct 1.442 695 040 89
- Semitones st 17.312 340 490 7
- Cents ¢ 1731.234 049 07
- Stop (photographic)s EV 1.442 695 040 89
Every row is Neper (Np) converted through the ratio, in exact rational arithmetic.
How to convert nepers to stop (photographic)s
Convert through a plain ratio: neper → ratio → stop (photographic). Logarithmic units cannot be converted by multiplying alone.
Neper: The natural-log counterpart to the decibel. 1 Np ≈ 8.686 dB (amplitude).
Stop (photographic): One stop doubles the light. Identical arithmetic to the octave.
Neper to Stop (photographic) conversion table
| Nepers (Np) | Stop (photographic)s (EV) |
|---|---|
| 0 Np | 0 |
| 1 Np | 1.442 695 |
| 2 Np | 2.885 390 1 |
| 3 Np | 4.328 085 1 |
| 6 Np | 8.656 170 2 |
| 10 Np | 14.426 95 |
| 20 Np | 28.853 901 |
| 30 Np | 43.280 851 |
| 40 Np | 57.707 802 |
| 60 Np | 86.561 702 |
| 80 Np | 115.4156 |
| 100 Np | 144.2695 |
Stop (photographic) to Neper conversion table
| Stop (photographic)s (EV) | Nepers (Np) |
|---|---|
| 0 EV | 0 |
| 1 EV | 0.693 147 18 |
| 2 EV | 1.386 294 4 |
| 3 EV | 2.079 441 5 |
| 6 EV | 4.158 883 1 |
| 10 EV | 6.931 471 8 |
| 20 EV | 13.862 944 |
| 30 EV | 20.794 415 |
| 40 EV | 27.725 887 |
| 60 EV | 41.588 831 |
| 80 EV | 55.451 774 |
| 100 EV | 69.314 718 |
Frequently asked
How many stop (photographic)s are in a neper?
One neper equals 1.442695041 stop (photographic)s (Np → EV).
How do you convert nepers to stop (photographic)s?
Convert through a plain ratio: neper → ratio → stop (photographic). Logarithmic units cannot be converted by multiplying alone.
What is 1 EV in nepers?
One stop (photographic) is 0.6931471806 nepers.
What is 10 Np in EV?
10 Np = 14.426 95 EV.
What exactly is a neper?
The natural-log counterpart to the decibel. 1 Np ≈ 8.686 dB (amplitude).
What exactly is a stop (photographic)?
One stop doubles the light. Identical arithmetic to the octave.