t_n1 Posted December 9, 2007 Share Posted December 9, 2007 Hello, I'm looking around for this lens and noticed that there's a "II" version available. Does anyone happen to know the differences in the upgrade? It's about $150 difference in price. Thanks. Link to comment Share on other sites More sharing options...
bill_keane2 Posted December 9, 2007 Share Posted December 9, 2007 Version II has a built-in HSM motor. I don't think the earlier one does. Link to comment Share on other sites More sharing options...
pete_s. Posted December 9, 2007 Share Posted December 9, 2007 I have it (version 1) and from what I can understand from the specs the "only" difference is that the optical formula is tweaked for better close-up performance. The number of ED glass, elements and groupings are the same as well as the physical attributes like HSM, weight, dimensions. Link to comment Share on other sites More sharing options...
eric_arnold Posted December 9, 2007 Share Posted December 9, 2007 version 1 does indeed have HSM. Link to comment Share on other sites More sharing options...
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