Sigma autofocus on canon

Discussion in 'Photography Forums' started by j4son, Feb 27, 2005.

  1. j4son

    j4son
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    I'm currently using consumer canon lenses 28-90 and 75-300 on my eos 20d, although i'm happy to stop these lenses down to get sharper images I still miss the freedom of having a faster lense.
    I have owned a couple of L series lenses (about 3 years ago then sold all my kit) and know just how excellent they are. Also I have owned sigma lenses and found the autofocus to be really bad (consumer lenses).

    The bottom line is, i'm looking for a cheaper alternative to L glass, so, how good are the EX series of lenses? Especially the autofocus.
     
  2. homerdog

    homerdog
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    They will be slower and noisier than L lenses, unless they have HSM. Some EX series lenses have, some haven't. Most are optically comparable though.

    Have a look at this link for more opinions :)
     

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