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Latest Review Posted	Sigma DC HSM (Art) 30mm F1.4 Hello! I have used this lens about 10 months and I've sold it for my first limited, 31 of course! I won't make a comparison with 31, just my observations. The lens it's sharp no problem with that, autofocus was good with point focus... But, there are too many buts... The first one it's chromatic aberrations and purple fringing, they are coming together! Let's see: https://www.pentaxforums.com/gallery/images/25601/large/1_IMGP12457.jpg Crop left: https://www.pentaxforums.com/gallery/images/25601/large/1_IMGP7914.jpg Crop right: https://www.pentaxforums.com/gallery/images/25601/large/1_IMGP7915.jpg This image was shot at f5.6 but I can tell you that even at f11 still could find aberrations! Let's see a winter shot: https://www.pentaxforums.com/gallery/images/25601/large/1_IMGP9590.jpg Left crop: https://www.pentaxforums.com/gallery/images/25601/large/1_IMGP9591.jpg As you can see, bad CA... Let's look at the bokeh: https://www.pentaxforums.com/gallery/images/25601/large/1_IMGP3730.jpg And right crop: https://www.pentaxforums.com/gallery/images/25601/large/1_IMGP3731.jpg When you have done with those troubles you have to deal with distortion: https://www.pentaxforums.com/gallery/images/25601/large/1_IMGP7888.jpg ...

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