Quote:
Originally Posted by Marios
I read the Semi APO filter is color balanced but dims the view given it has some LP properties in the spectrum. My question to the Photography users can the yellow be WB out or edited easily in post processing without color degradation??
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I'm a little confused. Are you referring the the Semi-Apo filter or a plain yellow filter for photography?
The Semi-Apo filter is colour balanced for photography. There is very little noticeable colour shift. I like it because of this.
A plain yellow filter for photography, depending on how deep the filter is (light yellow to deep yellow), a light yellow can be balanced back to "normal" but the deeper ones retain some colour shift. For reference the GSO yellow is deeper than a Hoya K2.
I sometimes use a yellow or yellow / green filter on an achro refractor to subdue the blue fringe.