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Security Camera Lens Size Comparison

A security camera lens size determines the field of surveillance view and zoom level that the camera provides. The camera lenses that CCTV Camera Pros supplies generally range from 2.5mm to 100mm. The larger the size of the lens, the more narrow and zoomed in the field of view is. Some of our fixed lens cameras come standard with a 3.6mm or 6mm lens. If you need precise adjustment to the angle and field of view for your application, a varifocal lens camera is recommended so that you can adjust the lens to the exact view that you need. CCTV Camera Pros offers vari-focal lenses such as 2.8-12mm, 6-60mm, and 5-100mm

CCTV Lens Comparison Video

CCTV Camera Lens Comparison

The above video provides a side-by-side CCTV lens comparison using a box security camera setup with the following lens settings: 2.8mm, 6mm, 12mm, 60mm, and 100mm.

Security Camera Lens Comparison Photos

CCTV Lens Comparison

Above is a side by side photo that compares the same lens settings from the video. Please click here or on the image to view larger format of this image. The above photos and video were captured using our PRO-680DN box style security camera.


HD Security Camera Lens Comparison

Here are some sample still photos taken using different lens settings from these HD box security cameras focused on a garbage dumpster 90 feet away from where the camera is installed. There are two versions of this camera. The only difference is the varifocal lens that is included. The AHD-BX3-28 comes with a 2.8-12mm lens. The AHD-BX3-5 comes with a 5-50mm lens. The camera captures full 1080p HD video.

To record these images, the camera was connected to an iDVR-PRO HD surveillance DVR.

2.8mm Lens

1080p HD Box Security Camera with Lens Set at 2.8mm

This first image was captured with the camera lens set at 2.8mm. You can see that the 2.8mm setting provides an approximate 95 degree field of view. The garbage dumpster in the background is located 90 feet away from where the camera is mounted.


5mm Lens

HD CCTV Security Camera - 5mm Lens

The above image was captured with the 5 to 50mm lens of the AHD-BX3-5 set at the widest setting - 5mm. The 5mm setting provides an approximate 66 degree field of view. The garbage dumpster in the background is located 90 feet away from where the camera is mounted.


12mm Lens

1080p Box HD CCTV Camera with Lens Set at 12mm

This image was captured with the camera lens set at 12mm. The garbage dumpster is still 90 feet away.


50mm Lens

HD Video AHD Box Surveillance Camera - 50mm Lens

This image was captured with the AHD-BX3-50 camera lens set at the most narrow / zoomed in setting - 50mm. You can see the huge difference in field of view / zoom when you compare the other images to the 50mm settings. The garbage dumpster is still 90 feet away, but appears as though it is right on front of the camera because the lens has been adjusted to bring the view much closer.


About the Author

Mike Haldas

This article was written by , co-founder and managing partner of CCTV Camera Pros. If you have any questions about security camera systems, please email Mike at mike@cctvcamerapros.net.