This is more a snapshot than anything else, but for those who own a Better Beamer, or have wondered what a Fresnel lens in big looks like, here is an image of the lens of the Pigeon Point Lighthouse near Pescadero, CA. It is a first order Fresnel lens. The "order" describes the size and focal length, and first order used to be the largest with a focal length of 920mm and a height of 2.59m, before someone decided that that was not big enough and built an even bigger one.

_AH08762 by ahab1372, on Flickr