Quote:
Originally Posted by Ross G
Thanks Greg,
I felt it couldn't be that easy.
How about shooting in narrowband?
Would photo through a Ha filter through an achromat be the same as one through an equivalent apo?
Ross.
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Its my understanding that narrowband does reduce the chromatic aberration so it should turn out fine. Lenses also. Would it be as sharp as a sharp APO? I suppose there are other aberrations besides chromatic that tend to be in achromats only because APOs also correct for these other aberrations as well.
It'd be worth finding out.
Certainly my FS152 was extremely sharp in narrowband images.
Greg.
Greg.