DSLR simulation

1.  2.8, 3.5, 4, 4.5, 5.6, 6.7, 8, 9.5, 11, 13, 16, 19, 22
2. from 1sec-1/4000sec
3. 100,200,400, 800, 1600, 3200, 6400, 12800, 25600