<http://webisa.webdatacommons.org/99952455>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<canonrumors.com> .
<http://webisa.webdatacommons.org/99952455>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/412413210>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/99952455> .
<http://webisa.webdatacommons.org/99952455>	<http://www.w3.org/ns/prov#value>	"acroand didn't anybody tell you that extension tubes or bellows (a technically better choice) will take away that f 1.4 in a heartbeat (it is a function of what they do - move the camera, and aperture away from the camera sensor) - the 50mm f 2.5 macro is a better choice or a 10mm macro" .