Reply to thread

Message

<blockquote data-quote="BackdoorArts" data-source="post: 197106" data-attributes="member: 9240">I don't know if I'd call it a &quot;spankin'&quot; only because when I see things&nbsp; like that I always wonder about focus calibration.&nbsp; While real world&nbsp; comparisons are nice, they're not as practical as something with real&nbsp; details.&nbsp; Here's a site I use all the time when getting a feel for how&nbsp; one lens might perform against another.<a href="http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=711&amp;Camera=474&amp;Sample=0&amp;FLI=2&amp;API=0&amp;LensComp=718&amp;CameraComp=474&amp;SampleComp=0&amp;FLIComp=3&amp;APIComp=0" target="_blank">Sigma 10-20mm f/3.5 EX DC HSM Lens Image Quality</a>I've loaded the two lenses in question here.&nbsp; It's great as you can&nbsp; change aperture and focal length and find sweet spots and where the lens&nbsp; might be weaker.&nbsp; Just mouse over the image to change from one lens to the other.</blockquote>

[QUOTE="BackdoorArts, post: 197106, member: 9240"] I don't know if I'd call it a "spankin'" only because when I see things like that I always wonder about focus calibration. While real world comparisons are nice, they're not as practical as something with real details. Here's a site I use all the time when getting a feel for how one lens [I]might [/I]perform against another. [URL="http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=711&Camera=474&Sample=0&FLI=2&API=0&LensComp=718&CameraComp=474&SampleComp=0&FLIComp=3&APIComp=0"]Sigma 10-20mm f/3.5 EX DC HSM Lens Image Quality[/URL] I've loaded the two lenses in question here. It's great as you can change aperture and focal length and find sweet spots and where the lens [I]might[/I] be weaker. Just mouse over the image to change from one lens to the other. [/QUOTE]

Verification