M8 and Zeiss 18mm

[angeloks]

I was wondering how this lens is performing on the M8. I'm using the 12mm, but it is sometime too wide for my taste. Do I need a 24mm finder ? Or the whole finder is a kinda good approximation of the lens coverage ?

 

[jaapv]

It performs just fine. Nearly as good as the far more expensive Super Elmar, especially on the M8.
You need a 24 mm auxiliary viewfinder. The CV 25 will do OK, but both Zeiss and Leica offer 24 ones.