| Aperture: | 1/F, where F = power( sqrt(2), Nf), halves the incoming light |
| Shutter Speed: | S = 1 / power(2,Ns) , halves the infoming light |
| Sensitivity: | ISO = 100 / power(2,Ni), halves the effect incoming light |
| Nf,Ns,Ni: | -5 | -4 | -3 | -2 | -1 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Aperture: | 1 | 1.4 | 2 | 2.8 | 4 | 5.6 | 8 | 11 | 16 | 22 | 32 | |||||
| Shutter: | 30 | 15 | 8 | 4 | 2 | 1 | 1/2 | 1/4 | 1/8 | 1/15 | 1/30 | 1/60 | 1/125 | 1/250 | 1/500 | 1/1000 |
| ISO: | 3200 | 1600 | 800 | 400 | 200 | 100 | 50 | 25 |
EV = Nf + Ns + Ni
EV=0, when F=1, S=1, and ISO=100 (0+0+0)
EV=7, when F=1,S=1/125, and IS=100 (0+7+0)
EV=5, when F=5.6, S=1, and ISO=100 (5+0+0)
EV=-2, when F=1, S=1, and ISO=400 (0+0+(-2))
