Our HD cameras come with either a fixed lens which has one angle of view or a vari-focal lens which can be adjusted during installation to balance area covered with detail captured. The more you zoom in the more detail you capture. We always recommend varifocal over fixed lens because it ensures you don't waste pixels on unwanted areas.
The images below are intended to give you an idea of what each camera will be able to see. In the case of the varifocal cameras we have shown the widest and most zoomed in extreme for that particular lens. We are always happy to advise you when it comes to chooing the best camera for your intended use.