Chromatic aberration gets worse with glass curvature aka magnification.
A +1 isn't straining much of anything. The achromats become more
necessary as the magnification goes up.
Chuck Norcutt
On 5/6/2016 6:18 PM, Mike Gordon via olympus wrote:
There are several sites summarizing the achromatic diopters available. I am
slightly puzzled as to why they are not all that readily available in lower
powers.
I like this site:
http://www.ki.tng.de/~sgude/achromats.html
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