October 18 by Walter Otto Koenig

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16-OCT-2008	Walter O. Koenig

October 18

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Fresnel Lens at the Old Point Loma Lighthouse
Made out of brass and several hundred hand ground prisms, this lens was made by Henry LePaute in France in the 1850's.
The lens is 5'2" (1,58m) tall and weighs 1,985lbs. (900kg.). Its light was visible for 20miles (32km)

Nikon D300 ,Tamron AF18-270mm F/3.5-6.3 Di II VC
1/80s f/5.6 at 18.0mm iso200 full exif

other sizes: small medium original auto

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Chad Ramsey		21-Oct-2008 02:03
These crystals are so beautiful! Nice shot~V

Rosemarie Kusserow		20-Oct-2008 17:44
Very interesting picture, I love all the reflections, beautiful details, vote, Rosemarie :o)

globalgadabout		19-Oct-2008 15:45
marvellous shot...the light fairly dances around this complex glasswork...V

Tomasz Dziubinski - Photography		18-Oct-2008 18:22
Superb and interesting shot, Vote.

Carol Rollins		18-Oct-2008 17:55
Wow, Walter, this is a superb image! Wonderfully shot!! V

Marcia Colelli		18-Oct-2008 17:35
wonderful capture, very nice detail on the lighthouse lalight V

zyziza		18-Oct-2008 17:00
Excellent capture Walter and interesting story about it! 1850 and it works till now? 32km!!! BV

Gerard Koehl		18-Oct-2008 16:00
Magnifique prise de ce phare... V

Bill Warren		18-Oct-2008 14:58
This POV creates an exotic capture of this lighthouse light. V

pkocinski		18-Oct-2008 14:39
The Fresnel lens is one of the coolest optical lenses. Nice image.

Ann...		18-Oct-2008 14:17
How wonderful - is it still in operation I wonder?

Guest		18-Oct-2008 14:11
"brilliant"!!!!-v-

Kathryn		18-Oct-2008 13:51
Puzzling - but a fabulous image ...

Mike Stobbs		18-Oct-2008 13:49
Way cool Walter...braVo...Mike

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