05-02-2011, 04:49 PM
The Signa:
* Better at the wide end (resolution wise)
* Much better distortion wise (much less barrel distortion at the wide end than other superzooms)
* Better build quality
* Silent HSM
* According to you, cheaper
* Includes IS/OS
The Tamron:
* A bit more compact
* A bit better resolution wise at the longest end
I'd go with the Sigma, looking at this list.
* Better at the wide end (resolution wise)
* Much better distortion wise (much less barrel distortion at the wide end than other superzooms)
* Better build quality
* Silent HSM
* According to you, cheaper
* Includes IS/OS
The Tamron:
* A bit more compact
* A bit better resolution wise at the longest end
I'd go with the Sigma, looking at this list.