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04-24-2009, 07:55 AM   #16
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I don't have an 18-250 yet but I'm planning on purchasing one before my next vacation.

Plain and simple, it's an incredibly flexible travel lens that does not sacrifice much IQ in return for its flexibility.

04-24-2009, 01:09 PM   #17
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QuoteOriginally posted by Alfisti Quote
I wish we had a REALLY STRONG 16-85 like Nikon...
Everything I've heard about the 17-70 is very positive - sharp, fast SDM focus, and fixed 4.0 aperture. Doesn't this meet that need?
04-24-2009, 08:57 PM   #18
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This is interesting. I have the 28-200 and just got the 18-250. The chief problem I am having is a blue ghosting around objects, especially bright objects like mayflowers, branches against the sky, a birdbath, etc. I have not seen this in photos taken with the 18-250 by anyone else.

I -think- that the 18-250 is sharper, though. It seems to come from the camera at the same sharpness I have do produce in development with the sigma.

Do I have a bad copy? Should I do an exchange with Adorama? Or is this normal to the lens, and if so, how do I remove this in development?
04-24-2009, 09:07 PM   #19
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I posted this in your other thread. I, along with a couple others who have this lens, have not seen the behavior that you are reporting. Please post pictures so that we can see what you are talking about. Do you have a filter on the lens? Are you using the hood?

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