Way to tell lens version of DS-2CD2112-I ?

[Mike4030]

I bought used Hikvision DS-2CD2112-I cam off ebay for parts.
No stickers on it. Turns out cam does work, firmware updates, can see in SAPD. But I dont know the lens mm.
I opened it up but can't see any obvious markings or numbers.
Any way to find out?

 

[xbmcnut]

This camera has 1/3" image sensor at 1280 x 960 max resolution. If you get this going in a wide open space and measure a set distance from the camera (say 30 feet) and then measure the width between the left and right extremities at that 30 ft mark, you should be able to punch that width data (along with image res, cmos size and object distance) into this calc and it should tell you the lens CCTV Lens Calculator

 

[Mike4030]

Awesome. Thank you