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Re: [OM] C-U Lens follies

Subject: Re: [OM] C-U Lens follies
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Sun, 8 May 2016 14:08:52 -0400
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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