What focal length am I viewing?

freddyq

Getting the hang of it
Nov 18, 2016
254
39
Hi, I've got a B5442E-ZE cam which I would like to use to test various focal lengths to determine which version of the T5442TM fixed lens cam I need to buy.

In the web interface for the camera, when in the live view I see the zoom slider goes from 0 to 2275 which means 0 is 2.7mm and 2275 is 12mm but when I am moving the slider in-between, how do I know which focal length it is at?

TIA!