Handmade Borosilicate Test Tube Ring
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Bob in SF

Location: San Francisco CA US
Posts: 2
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Crushed borosilicate glass in the bottom of a borosilicate glass test tube, twisted and formed into a ring with graphite tools.
· Date: Mon 27-February-2012 · Views: 400 · Filesize: 70.8KB, 355.1KB · Dimensions: 1000 x 733 ·
Keywords: handmade ring, borosilicate glass, test tube, Markison
Camera: D300
Lens & Filters: Sigma MacroD, shot through a didymium glasses lens (my flat filter broke)
Film and/or ISO: 500
Aperture: 8
Shutter speed: 80
Location: San Francisco
Tripod & Head
Joby Gorillapod
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