Quote:
Originally Posted by RickS
Yep. No special reason why I used the QE for Ha except that I seem to capture it frequently  It would also make sense to put in an average QE over the visible range but it's tougher to estimate. |
Cool.
Quote:
Originally Posted by RickS
By diameter like what is normally quoted in specs, e.g. 45% obstruction would be 0.45.
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Yeah I'm asking because I checked the specs on the C11
here and it quoted 34% by diameter and 12% by area. That's a big difference.