Sigma 30mm f/1.4 EX DC HSM Lens for Canon Digital SLR Cameras
Used & New from: $284.10
D40 compatibility? Does the presence of the 'HSM' (which sounds like an internal AF motor to me) mean that this lens will work on the D40?
asked by Andrew J. Lusk on December 4, 2006
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Yes. HSM is Sigma's version of Nikon's AF-S. It features an internal motor so it will not only focus with the D40, but it will focus much faster than say, if you used a D50 with a normal AF lens, and it will be much more quiet.
B. Qaasim answered on December 27, 2006
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I just got to use this lens on a D40 tonight, and it's nice, real nice. I still hate the D40 for its focusing handicap, but if you've got one this is a great lens for it.
M. T Ely answered on December 25, 2008
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