Originally Posted by LJH
I get it at 4 seconds. Or 6. Or 5, as you wrote, depending on where I decide 2 seconds lies and where the intersection point is. Hardly accurate. At best, it is an indicative graph.
The difference between 5 versus 4 or 6 seconds is only 20%. Insignificant especially with color neg. Always err on the side of more exposure with color nef so give it 6 and don't worry about it.
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