Buying
Dash Cam Field of View: How Wide Is Wide Enough?
Field of view sounds like more-is-better, but a very wide lens has hidden costs. The right angle balances context against detail.
What field of view means
Field of view is how much of the scene the lens takes in, measured in degrees. A wider angle sees more lanes and more of the roadside at once.
The downside of too wide
Very wide lenses introduce fisheye distortion and spread the same pixels across a larger scene, which shrinks distant objects and can make plates harder to read at range.
The practical range
Somewhere around 140 degrees is a common sweet spot: wide enough to catch adjacent lanes without so much distortion that detail suffers.
This guide is general information to help you use your gear, not professional, legal, or insurance advice. Rules vary by region — check your local regulations where relevant.