EV = Exposure value
At 400 ISO all the following combinations will give an EV of 7.5:
1/250 sec @ f 1.4
1/125 sec @ f 2
1/60 sec at f2.8
1/30 sec at f 4
1/15 sec @ f 5.6 etc
And for EV 11:
1/1000sec @ f 1.4
1/500 sec@ f 2
1/250sec @ f 2.8
1/125sec @ f 4
1/60 sec @ f 5.6 and so on..... regards, Ken
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