after alot of research into dSLR cameras and what not ive decided upon a nikon D70s. Now i need to figure out which lens to get. Basicaly I'm looking to do alot of architectural and landscaping photography, so my first thought was i needed to look into a zoom lens so i can take paterns out the sides of buildings but also be able to capture the whole building with the same lens. So I began to look at lenses and came across the Tamron 28-75mm 2.8 XR di lens. Now my question is, am i making the right choice by getting this lens or should i possibly look into a different type of lens or a different zoom lens.