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Eliminating geometrical and physical optics
You wrote above: ""When describing redshift mechanisms we need to eliminate geometrical and physical optics"". I note that you've included the Wolf effect which is consistent with your statement.
The article on the Wolf effect includes reliable sources stating that the Wolf effect is a redshift mechanism.
Can you provide a source that indciates that the Wolf effect should be excluded as you stated (I understand that many books might not include it for whatever reason, but this is not the same as excluding it)  
Or how about a source excluding ""physical optics"" from redshift mechanism?  "