FOV of 2CD2352-I for various lenses

[aster1x]

Does anyone have the FOV angles (horizontal and vertical) of 2CD2352-I (5Mpixel) for various lenses? I cannot find any info officially at HIK sites.

 

[achernar]

The datasheet does not give the diagonal fov angle measurement. So this is all guessing.

There is some hearsay that Hikvision are using the OmniVision OV5658 sensor in their 2 series 5MP cameras. The data sheet says:

sensor area: 4.592mm x 3.423mm
sensor pixels: 2592 x 1944 pixels

camera pixels: 2560 x 1920

so Hikvision are only cropping 32 x 24 pixels.

effective sensor width = (2560 pixels/2592 pixels) * 4.592mm = 4.535mm

effective sensor height = (1920 pixels/1944 pixels) * 3.423mm = 3.801mm

This is very close to the effective sensor size of the 3MP 4:3 DS-2CD2332-I camera, so the calculations of the field of view should be very close (assuming the lenses are the same, another big assumption):

Hikvision, focal length, angle of view and other lies

 

[aster1x]

I was aware of the post of CamFan and that inspired to actually measure the angles of the 2CD2352 at 4mm from a borrowed camera.
So horizontal angle of view is 65 degrees and vertical angle of view is 48 degrees. The horizontal angle of view is very similar to the new Chinese targeted camera 2CD2355 as seen in its data sheet.
Another observation is that the official horizontal angle of view of the 2CD2342 (the previous 4Mpixel) at 4mm is 83 degrees and its vertical angle is 106 degrees. Therefore it seems that the lower resolution 4MP camera at the same focal length lens (4mm) has a wider view than the newer 2CD2352 camera. Interesting.
Now I am still looking for the angles of view at other focal lengths of 2CD2352.