I'm thinking of buying one of the above lens.
Any advice from veterans who have tried these lens?
I read that Tamron 18-270 comes with optical stabiliser while the 18-250 does not.
Is it true that with a Nikkon D90 (with image stabiliser), it does not make a difference whether the lens has stabiliser or not?
Also, I'm concerned about the image that Tamron & Sigma produces. Would the image be 'soft'?
Thanks in advance!