M12 Pinhole Lenses – Worth It for Hidden Security?

I have been playing around with different surveillance setups lately and thought it would be cool to try some M12 Pinhole Lenses. Honestly, I did not expect much due to the size of these lenses, but wow, really impressive tiny lens for covert monitoring. 

The lens is tiny and lightweight, allowing for really low profile methods to hide these in areas where a normal CCTV lens would be obvious. The clarity is solid, and the depth of field is impressive (things at different distances still coming out sharp) considering the lens size. 

In my opinion, they are best when you need hidden security in very difficult conditions. They do not have the low-light capability of larger lenses or have a lot of zoom flexibility, but I think for surveillance where concealment is much more important than power, M12 Pinhole Lenses are impressive.