Fresnel Lens again
...looking in from the side at the electric lights that replaced the lighthouse's original whale-oil lamp.
Taken Saturday, January 03, 2004, 11:48:16am. Original image size: 3072x2048, 5.8Mb
Technical details: Canon EOS D60, 1/80s @ F8.0, ISO 100, 15mm/F2.8 (24mm equiv)
PS7 CRW 4300:12, 0.75:12:55:80:3:25:5+M, USM 20:5