Quote Originally Posted by night86mare View Post
theoretically, the answer to your question about zooming is "yes", cos 12-24 is effectively a 2x zoom, whereas 18-55 is >2x zoom.
Yup. A 12-24 is a "2x zoom". So is a 10-20. So is a 200-400, and believe me, you'll get very different results from these lenses.

Rather than referencing "zoom", try to learn what "focal length" means.