I'm going to be using this lens on my Nikon d3200 for travel and general all around shots. Right now I can get the Nikkor 18-200mm for $350 (slightly used, very good condition) and the Sigma 18-250mm for $350 (new). I have used the Nikkor 18-200mm a few times and generally like it except the fact it is a little on the heavy size and like other lenses it has barrel creep (which I don't mind too much). I haven't used the Sigma 18-250mm so I can't say anything for that one. Which one would you purchase and why (please list some pros and cons) thanks!
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