Soft lenses are made of plastic with a high water content.

Also, in those days lenses were made of thick glass and he found them uncomfortable.

The lens is made of lead glass and weighs 12,800 pounds.

But it takes so long to make lenses, polish mirrors.

It is also used in making optical glasses and lenses.

You can make beautiful prisms and lenses out of it.

Several companies made catadioptric lenses throughout the later part of the 20th century.

This changed as of mid-2007 with the lens now made in China as well.

However, it is well known that he was not the first to make achromatic lenses.

The Allies had to quickly learn to make lenses especially for long foci.