A lot of the low-end lenses,like the 28-80,35-80 are very light in weight,are the lens elements made of glass or something else? thanks

-- carto (a@b.com), March 29, 2002

Answers

Yes.

-- Julian Loke (elan7e-owner@yahoogroups.com), March 30, 2002.

I think the elements are all glass but the light weight comes from the plastic used in the lens body.

-- Lee (Leemarthakiri@sport.rr.com), March 30, 2002.

Both, in addition canon uses fewer correction elements and replaces them with hybrid aspherical elements.these are often molded on to other spherical shaped elements to keep the number of elements down and still be cost efficient.However,the performance of these lenses is low.

-- joe cap (joemocap@yahoo.com), March 30, 2002.

The rear element of my EF 35-80mm f/4-5.6 is apparently made from plastic (just like my spectacles). Users of the UK paint-and-peel lens cleaner Opticlean reported that it was possible to dissolve their Canon lens.

Fortunately, the plastic lens used in my EF 22-55mm zoom lens is internal and not susceptible to any cleaning efforts.

-- Julian Loke (elan7e-owner@yahoogroups.com), March 30, 2002.