Is there really that much of a performance difference between Apo-Symmar and an Apo-Symmar-L lenses?
I heard that the former used some sort of radioactive component that was eliminated in the latter. So I've always assumed that if either was sharper, it would be the Apo-Symmar, since there were fewer constraints in the choice of materials for that lens.
Yet recently, someone suggested to me that the Apo-Symmar-L is much sharper than the Apo Symmar. Is this correct?
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