Archived posting to the Leica Users Group, 2001/05/07
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I believe the suggestion is that the lens design with the aspheric element(s) is more compact than the lens design without ANY aspheric element(s). JBC > From: "Austin Franklin" <darkroom@ix.netcom.com> > > >> 'Hybrid aspheric' means having a piece of moulded plastic aspheric element >> adhered to a conventional (spheric) glass element, rendering the combo >> 'aspheric'. Many, if not most, consumer zoom lenses are made in way; not >> so much for superior optical quality but mostly for the more >> compact designs >> this technology offers. > > Why would it be more compact? Isn't an optical element exactly the same > physical size no matter what the material? >