EFoV of this lens on M8 is 28mm equivalent for 35mm format. So I made light blocking
paper shield for this lens, for it is difficult to get a hood for this lens and it also rotates
unfortunately while focusing. External finder on M8 is a Cosina made 28/35 black one.
Zeiss' external finder is very good but too big for a traveling, that's why I use Cosina's.