I am interested in buying a DSLR lens before Christmas and came across the "18-55mm f/3.5-5.6 AF-S DX VR Nikkor Zoom Lens". Now no matter how hard I look there is absolutely no mention anywhere on the web of how far it can optical zoom. Why can't they simply specify how much it needs to zoom and how can I calculate how much a lens could zoom in the future. All help appreciated. Thanks.
>>> What is the optical zoom of the DSLR I am interested in?