Talk:Sigma 4.5mm f/2.8 EX DC Circular Fisheye HSM lens

Specs...
Doesn't Sigma's "HSM" designation mean an ultrasonic motor? &mdash;/M endaliv /2¢/Δ's/ 18:07, 22 July 2010 (UTC)
 * Corrected.  D RAGON 280  ( T ALK / C ONTRIBS ) 20:48, 17 November 2010 (UTC)