Short answer
Coverage depends on lens, resolution, lighting, distance, height, and angle, and on which entry points come first. Cover the front door, the driveway and the least visible door before anything else, choose mounting height for each camera's purpose and test image detail at the required distance, and avoid pointing into the sun or through glass.
In this article
How does camera placement determine what a system sees?
Coverage depends on lens, resolution, lighting, distance, height, and angle. The lens sets the field of view, but placement decides what falls inside it — a camera aimed a few degrees off can miss a doorway while recording an empty driveway in sharp detail. The same model can produce very different coverage depending on mounting.
A spec sheet answers only part of that. Resolution and night vision range describe what a camera is capable of recording, not what it is pointed at. A high-resolution camera aimed at the wrong six feet of yard still misses the six feet that mattered, while a modest camera aimed correctly at a doorway can capture a usable, identifiable frame of whoever walks through it.
Which entry points need coverage first?
The front door, back door, and any ground-floor window facing a street or alley are usually the highest-priority points, since they are common ways into a home. A driveway or side gate comes next, covering the approach to the house rather than the point of entry itself.
Coverage priority follows how a property is used, not how it looks from the street. A side door used daily for deliveries or a garage entry left unlocked during yard work is often a bigger gap than a formal front entrance nobody uses. Working the property's actual traffic patterns into the placement order catches points a purely visual walk-around would miss.
What do height and angle change about a camera's field of view?
Mounting height trades facial detail for coverage area — a camera mounted too high may capture the top of a head instead of a usable face, while one mounted too low is easier to block or tamper with. Select mounting height for the camera's purpose and test image detail at the required distance.
There is no single correct height. A camera meant to show faces at a door needs a different position than one watching a whole driveway, so select mounting height for the camera's purpose and test image detail at the required distance: high enough to be out of easy reach, low enough that a face is not foreshortened into the top of a head. Angle determines whether the frame centers on the point of entry or drifts toward empty space beside it. Angle needs a similar balance — tilted too far down and the camera only covers the ground directly below it; tilted too level and it captures the horizon instead of anyone approaching. For coverage that depends on running a cable to reach the right spot, see this comparison of battery and wired security cameras, since power source often decides which mounting points are realistic in the first place.
Where do placement mistakes most often create blind spots?
The most common mistakes are mounting a camera too high to capture a usable face, aiming it at a driveway instead of the door someone approaches, and leaving the space directly beneath the camera uncovered — a spot many cameras cannot see.
That last gap is the one homeowners notice least, since it's invisible from anywhere except directly under the mount. A camera covering a doorway from high up can still leave a narrow strip of wall and step beneath it unrecorded, which can be where someone working the lock or reaching for a package stands. A second, lower-angle camera or a wider mounting offset can close that gap; professional installation plans for it during the survey rather than as an afterthought.
What does good placement look like in practice?
Good placement starts from the entry point outward: aim the camera at the door or window first, then adjust height and angle until a person standing there fills a usable part of the frame, rather than starting from a convenient mounting spot and hoping it happens to cover the right area.
That sequence — entry point first, mount second — is the opposite of how placement often happens in practice, where a camera goes up wherever there's already a power source or a clear soffit to screw into. Working backward from a convenient spot is faster to install but leaves coverage decided by the house's wiring instead of by where someone would approach it. For a wider view of how placement fits into a full camera setup, see our guide to home security camera systems.