[elektro-etc] iPhone5 vagy Galaxy S3 ?
Kaczmarek Edvard
edk-eletc at babakezek.hu
Wed Oct 31 11:44:49 CET 2012
> angolul az objektiv es a lencse is lens. valojaban szakszovegben a lencset
> inkabb element-nek, optical element-nek hivjak. a plastic lens az
> egyszeruen muanyag obi.
,,Another clever way is to glue a thin molded piece of aspherical plastic to a
conventional glass element. This gives the advantage of adding mechanical
stability to the plastic element since it's glued to a glass substrate. This
is also inexpensive and allows some performance improvement at the same time.
Nikon uses this in the 28-70mm f/3.5-4.5 AF-D, 35-105mm f/3.5-4.5 AF-D and
28-200mm f/3.5-5.6 AF-D. The 28-200 also uses molded aspherical elements.''
Ed
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