|
Ian is right about the reduction in image quality the larger the focal length range of a lens (in general).
It's really a case of how much you want to carry and how much you want to spend. The 18-250mm isn't particularly heavy and is certainly lighter than carrying more than 1 lens. You could also look at the Tamron 18-270mm VC (if it comes in Sony fit) which is pretty good in it's class.
WRT the suggestion of a 10-20mm and a 50-200mm, you're leaving a gap in the middle but that might not be an issue. It's a much more expensive option though and you've got more to carry around as well.
|