Some Questions to Boardman

Mantissa

<P>Dear Redflag,</P>
<P>Could you kindly explain what is the major difference between</P>
<P>Very high contrast, low resolution </P>
<P>High contrast, good resolution </P>
<P>Good contrast, high resolution </P>
<P>Low contrast, very high resolution</P>
<P>in Aperture Weight of Error Function Weight?</P>
<P>Thanks a lot!</P>
<P>B.R.</P>