Seal Island Museum Lighthouse, Barrington, Nova Scotia
This is the top section of the 2nd order Fresnel lens in the lantern room of the approximately 1/2 scale replica Seal Island Lighthouse. The lantern room, removed from the original Seal Island Lighthouse in 1978, was installed on the replica tower in Barrington, with the museum opening to the public on Canada Day, 1985.
The Fresnel lens was invented in 1822 by Augustin-Jean Fresnel, and by its design, was able to "supercharge" the light output of lighthouses. These intricately constructed optics are marvels of engineering and really should be seen up close. In the 19th century the light source was often a multi-burner lamp fueled by a variety of oils. Later, acetylene gas was used, and eventually electric illumination became available, with the light being provided by a 1000 watt lamp.
This photo is a copy of an original image taken in 1999 using Kodak Tmax 100 roll film (120) in a Mamiya C33 TLR camera, using a 55mm f4.5 lens. The copy was made using a Nikon D3500 camera with a 55mm Micro-Nikkor lens, with a Nikon 4T close-up lens, and a Sigma 1.6x close-up lens mounted on the 4T.
DSC-0439
Seal Island Museum Lighthouse, Barrington, Nova Scotia
This is the top section of the 2nd order Fresnel lens in the lantern room of the approximately 1/2 scale replica Seal Island Lighthouse. The lantern room, removed from the original Seal Island Lighthouse in 1978, was installed on the replica tower in Barrington, with the museum opening to the public on Canada Day, 1985.
The Fresnel lens was invented in 1822 by Augustin-Jean Fresnel, and by its design, was able to "supercharge" the light output of lighthouses. These intricately constructed optics are marvels of engineering and really should be seen up close. In the 19th century the light source was often a multi-burner lamp fueled by a variety of oils. Later, acetylene gas was used, and eventually electric illumination became available, with the light being provided by a 1000 watt lamp.
This photo is a copy of an original image taken in 1999 using Kodak Tmax 100 roll film (120) in a Mamiya C33 TLR camera, using a 55mm f4.5 lens. The copy was made using a Nikon D3500 camera with a 55mm Micro-Nikkor lens, with a Nikon 4T close-up lens, and a Sigma 1.6x close-up lens mounted on the 4T.
DSC-0439