I'm about to become a first timer at commercial photography. I have to take pics of a number of doors. The doors are maybe 18 inches x 12 inches (0.5 metres x 0.3 metres). The pics will be used on a website. I'm planning to take the pics outdoors - it is always cloudy where I live. What's bothering me is that I'll be wanting to crop the images to the straight edges of the doors and resize to a standard size. But will I have problems with barreling of the straight edges? Would it be better to move the camera away from the object and then use the 3x zoom, or no zoom and get in a bit closer? Any thoughts?