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Message: <blockquote data-quote="swainsons" data-source="post: 1786768" data-attributes="member: 82915">Mmmm. maybe my Sigma was a very sour lemon then. The difference between my 300mmf4 and Sigma is vast to say the least.What I find interesting is that the 300mmf4 lens is really easy to use, even without VR I have no problems. With the Sigma I always had a little fight going, making sure everything is this or that way, my keeper rate with Sigma was probably around 5/100. With Nikon lens its more like 20/100. Thats a big difference.Maybe the D90 vs D60 body is also making a big difference. Not sure.See attached moon picture from the other night, I could never get that right with my Sigma....Regards,</blockquote>