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JPK
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09-26-2013
09-27-2013
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I am interested in a Canon lens for a Canon 6D SLR. I'm confused by USM, STM and II ?
09-26-2013
I am looking at variouslens fora Canon 6D SLR camera. Under EF lens what does USM mean, and STM and II USM? Thk u,jk
Re: I am interested in a Canon lens for a Canon 6D SLR. I'm confused by USM, STM and II ?
09-27-2013
Thank you... JK
