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Sigma-apo-macro-180mm-f3-5-ex-dg-hsm.33340006
8.4 out of 10

Sigma APO MACRO 180mm F3.5 EX DG /HSM

Taking picture of small animals and insects can be difficult, be Read more

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Reviews and Problems with Sigma APO MACRO 180mm F3.5 EX DG /HSM

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Overall 4
4.0

Nikon Sigma 180 Macro, inconsistent auto focus

Karl Bryan "classic camera user", Amazon
25 December 2008
  • Summary: I purchased this lens because I wanted more distance when taking macro photos. As I do with all new lenses I purchase, I calibrate the AF (I have a Nikon D300 with AF Fine Tuning capability). What I found is that the AF on this lens has too much back lash to consistently focus. I took 5 pictures of a static object using a cable release and the camera mounted on a tripod. Before each picture was taken, I would rotate the focus ring either clockwise or counter clockwise.
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