Sigma 30mm F1.4 EX DC HSM Lens Review at Ken Rockwell
Ken Rockwell takes the Sigma 30mm F1.4 EX DC HSM Lens for a test drive and offers the following, “It works well for its intended purpose: low-light hand-held shooting. Optically it’s not as good for shooting test charts as the Canon or Nikon f/1.4 lenses that cost several times as much, but this is irrelevant because of the tiny depth of field at f/1.4 for photographing real things. On the downside - AF often focused slightly in front of my subject, potentially significant at the large apertures for which you buy this lens. I worked around this by pointing my AF sensors at something behind my subject if it was critical.”
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