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<p>[QUOTE=&quot;kaparthy, post: 4409721, member: 57463&quot;]Desertgem is absolutely correct. Like several (many?) others here, one of my other hobbies is astronomy. More magnifying power does not make a better view. You need aperature (lens size). I feel that chromatic aberration, spherical aberration, and other problems can usually be ignored in numismatics. I worked for a year for Carl Zeiss. So, I &quot;get&quot; what Desertgem said. It just depends on what your own practical limits are. My most common use of a magnifier is to sort pre-1982 US cents. I know a serious VAM guy who uses the big aspherical viewer to attribute any Morgan Dollar with a scratch on it. </p><p><br /></p><p>This is another of mine. It is called a Linen Tester. It has scales in metric and English.</p><p>[ATTACH=full]1107288[/ATTACH][/QUOTE]</p><p><br /></p>

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