6mm Standard

43.6° horizontal field of view - Complete coverage reference guide

Focal Length

6mm

Field of View

43.6°

Lens Type

Standard

Sensor

1/3"

About the 6mm lens

A 6mm lens narrows the view to about 50° — closer to the field of view of a portrait camera than a wide-angle CCTV lens. It trades the broad coverage of 4mm for significantly more pixel density at distance, making faces and license plates identifiable much further from the camera.

Best for

•Driveway entrances, residential gates, and short approach roads where you want face/plate detail
•Long corridors and warehouse aisles where the camera looks down the length of the space
•Loading docks viewed from the back wall
•Building entrances seen from across a parking lot or courtyard

Trade-offs

•Coverage is noticeably narrower — a 6mm camera covers about 9m wide at 10m distance vs. ~14m with a 4mm lens
•Multiple cameras may be required to cover wide areas that a single 4mm could handle
•Less natural framing for room overview shots

Real-world example

On a 15-meter driveway, a 6mm lens captures clear face detail of approaching visitors while still framing the vehicle and surrounding context. In warehouses, mounting a 6mm camera at the end of an aisle provides clean view of the full length without wasting resolution on the racks themselves.

Compared to other focal lengths

6mm vs 4mm: roughly 35% less horizontal coverage, but pixel density at 10m distance increases by about 50%. 6mm vs 8mm: slightly wider, more flexible for general use, with only marginal loss in identification distance.

Coverage Width at Different Distances

Distance	Coverage Width	Use Case
5m	4.0m	Entrance/POS area
10m	8.0m	Retail floor, office
15m	12.0m	Warehouse aisle, parking
20m	16.0m	Warehouse aisle, parking
30m	24.0m	Parking lot, perimeter
50m	40.0m	Parking lot, perimeter
75m	60.0m	Long-distance monitoring
100m	80.0m	Long-distance monitoring