Tamron 18-250mm vs. Tamron 18-270 VC: Pick qualiity or VC?

Started Feb 4, 2010 | Discussions thread
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Tamron 18-250mm vs. Tamron 18-270 VC: Pick qualiity or VC?
Feb 4, 2010

I'm looking for a cost-effective Jack of all trades master of none lens for my 40D. I do understand that that there will be compromises with this solution. Basically, I've narrowed it down to the two lenses mentioned in the title. I can't afford the 18-200mm Canon.

When I first looked at these two lenses, I assumed that the newer VC version would have at least the same optical quality as the 18-250mm version, which tested very well on photozone. But when I read the photozone review, the VC version of the lens didn't test as well...primarily in resolution at borders and for CA. Here are the tests:
http://www.photozone.de/canon-eos/412-tamron_18270_3563vc_canon?start=1

http://www.photozone.de/canon-eos/293-tamron-af-18-250mm-f35-63-di-ii-ld-aspherical-if-macro-canon-lens-test-report--review?start=1

In the end, here are my questions:

1. Could the differences in the tests of the two lenses just be anomalies based on sample variations? Maybe there are others who have tested the lenses side by side and found them to be optically comparable.

2. Assuming that the photozone tests are accurate and representative, which tradeoff is better: better optics but no VC, or the VC version with poorer optics. I'm pretty sure I'll be using the 18-150mm range 95% of the time, if that matters.

At this point, I'm leaning towards the Tamron 18-250mm for the presumably better optics.

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