Quote Originally Posted by kosmo View Post
One is 455 the other is 800. Ill wait on the other response that your looking for so others can ponder for little bit
All of the scenarios the guys have listed are indeed possibilities...and most are self- explainitory ...

Now someone explain the technical reason kosmo's answer (and Nory's) ...is a possiblity...

Why is one frequency generally darker at the edges than the other...??

Rickie