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<blockquote data-quote="Rick M" data-source="post: 350118" data-attributes="member: 4399">Sorry, but yes it did make a big difference. My first shots were some close up flower shots at f1.4, You can really see any variance that way. In camera tuning centered the close up focus, but threw off long distance focusing. At that point I bought the dock and it made it perfect. I think the dock eliminates any variations found in lens or body copy combinations. No lens can be perfect at every focal length, but the dock closes the gap by applying preset corrections at the 4 customization points. Before anyone gets on the &quot;it should be perfect out of the box&quot; argument, few lenses, even Nikon, are perfect OOB if you test them extensively. After that point you can only make a broad adjustment using the body. With these new Sigma's, the lenses software is actively working/adjusting while you shoot. I guess we could call them &quot;smart&quot; lenses.</blockquote>

[QUOTE="Rick M, post: 350118, member: 4399"] Sorry, but yes it did make a big difference. My first shots were some close up flower shots at f1.4, You can really see any variance that way. In camera tuning centered the close up focus, but threw off long distance focusing. At that point I bought the dock and it made it perfect. I think the dock eliminates any variations found in lens or body copy combinations. No lens can be perfect at every focal length, but the dock closes the gap by applying preset corrections at the 4 customization points. Before anyone gets on the "it should be perfect out of the box" argument, few lenses, even Nikon, are perfect OOB if you test them extensively. After that point you can only make a broad adjustment using the body. With these new Sigma's, the lenses software is actively working/adjusting while you shoot. I guess we could call them "smart" lenses. [/QUOTE]

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