The lenticular galaxy was named so because its shape resembles a lens.

I bought a new camera lens.

My new camera comes with a zoom lens.

A Fresnel lens is very effective at gathering light.

This lighthouse is using a Fresnel lens.

I'm looking forward to taking landscape photos with my new wide-angle lens.

My new camera comes with a fisheye lens.

She put on coloured contact lenses and changed the color of her eyes.

His name is John.

The shape of this object is very unique.