More resolution isn't automatically better if the camera's mounted wrong. A high-resolution camera aimed too wide across a parking lot will still give you a blurry, unusable face when you need to identify someone, because resolution gets spread across the whole frame. For identification-critical spots, entrances, cash registers, gates, we mount narrower field-of-view cameras closer to head height and aimed at the path people actually walk, not a wide establishing shot from the roofline. Wide-angle, higher-mounted cameras are the right call for general coverage and activity monitoring across a lot or floor, where you're trying to see what happened, not necessarily identify a face from thirty feet. Some of that mounting logic gets even more specific once cameras start doing the analysis themselves, see our AI-powered camera solutions for what that looks like in practice.
Lighting matters as much as the camera spec. A camera rated for low light still needs some ambient light to work with; true darkness needs infrared or a camera built for it. We check actual lighting conditions at the hours you care about, not just during a daytime site visit, since a spot that looks fine at 2 p.m. can be unusable on camera at 2 a.m.