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  • Rule: ActivityStreamsMapasEquivalentb3sb3sifpdbprdf-labelfacetshttp://dbpedia.org/resource/inference/rules/dbpedia#http://dbpedia.org/resource/inference/rules/opencyc#http://dbpedia.org/resource/inference/rules/umbel#http://dbpedia.org/resource/inference/rules/yago#http://dbpedia.org/schema/property_rules#http://www.ontologyportal.org/inference/rules/SUMO#http://www.ontologyportal.org/inference/rules/WordNet#http://www.w3.org/2002/07/owl#ldpoplwebskos-transurn:det:rdf:labelvirtrdf-labelvirtrdf-urlNone
    
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About: Speed ring     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:WikicatPhotographicLenses, within Data Space : dbpedia.org associated with source document(s)

Type: softwareyago:Artifact100021939yago:Device103183080yago:Instrumentality103575240yago:Lens103656484yago:Object100002684yago:OpticalDevice103851341yago:PhysicalEntity100001930yago:Whole100003553yago:WikicatPhotographicLenses New Facet based on Instances of this Class

A speed ring is a solid metal ring-shaped disk which is used to attach a soft box to a studio (strobe) or continuous (hotlight) light source. There are 4 to 8 holes drilled into the circumference of the ring which receives the metal rods of the soft box; they are held in place by tension. Shapes can vary depending on the manufacturer. Typically, the opening in the center ranges from 4 to 7 inches, allowing the light source to enter the softbox or other modifier. Common ring types are Bowens, Profoto, and Alien Bees.