In most lenses the stop is used to correct defects. Single element achromat lenses had the stop (obviously) behind the lens. The serious errors of such a lens were eliminated to a large extent by...
Type: Posts; User: John Banyai Jr.; Keyword(s):
In most lenses the stop is used to correct defects. Single element achromat lenses had the stop (obviously) behind the lens. The serious errors of such a lens were eliminated to a large extent by...