The area of the sensor is not the power of the crop. The crop is based on the diameter of the image circle. You will find the diagonal is the effective crop basis. The relationship does not give area as 1/4 regular sensor any more than APSC sensor is 1/2.5.
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The older I get the better I used to be.
Last edited by carman; 19-01-07 at 23:20.
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