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Message: <blockquote data-quote="binomania" data-source="post: 3296042" data-attributes="member: 90412">Hi Robert: it's difficult for me, 'cause i've not at home the old specimen. From memory, I do not notice much difference.Today it rains here, and I just finished watching a hawk perched on a birch tree near my house. At the center of the field SF and the EL have a containment  of chromatic aberration quite similar. Sometimes the SF seems   better in the center, but shows a more  lateral chromatic.You must also think that the perception of the chromatic aberration is subjective as distortion. However, I repeat, are two different sizes   8X and 8.5x ,with different field of view and it is difficult to make a  perfect comparison.</blockquote>