BCHobbyist
Well-Known Member
- Joined
- Jan 19, 2017
- Messages
- 1,636
- Reaction score
- 2,352
- Location
- Vancouver
- Country
- Canada
- Dash Cam
- A139 3Camera A129Duo-8WL A129Pro-4K A119V3 A119S-6Vk DCTeam
Decided to measure the horizontal Field Of View angle on the newest A119 dashcam as of Jan 28 2017. Performing the measurement in-doors on a sheet of paper marking the extreme left and right positions then drawing lines back to lens focal point results in 110 to 108 degrees. Viewing the 1080p video clip of the measurement shows a slightly wider view of not more than 2 degrees so (+/-) 2 degrees.
I was very surprised at the difference from the advertised 160 degrees view on the box. It would be of interest what the A118 / A118C / A119 early and newest A119S horizontal measurements are and how they relate to their advertised angles.
Repeated this test on two other non-Viofo dashcams which are marketed as having 140 & 155 degree wide angle lens yields 120 & 125 degree horizontal angles on paper. Many dashcam vendors use the diagonal degree or naked lens measurement for marketing purposes (bigger is better). It's not false advertising but it sure can be confusing.
If the naked lens itself has a 155 degree FOV but the sensor can only use 125 degrees which measurement should be advertised on the box/website?
I was very surprised at the difference from the advertised 160 degrees view on the box. It would be of interest what the A118 / A118C / A119 early and newest A119S horizontal measurements are and how they relate to their advertised angles.
Repeated this test on two other non-Viofo dashcams which are marketed as having 140 & 155 degree wide angle lens yields 120 & 125 degree horizontal angles on paper. Many dashcam vendors use the diagonal degree or naked lens measurement for marketing purposes (bigger is better). It's not false advertising but it sure can be confusing.
If the naked lens itself has a 155 degree FOV but the sensor can only use 125 degrees which measurement should be advertised on the box/website?