I seem to be more of a low light guy and I did not like the preash 50 lux on an m8, though I liked it on film. I ma getting a 24 1.4 after selling a my 50 lux 38 cron and 35 cron I will have enough money to get a 24 . My bigger question is the wate my least used lens I am thinking I can get the 18 zeiss and he 50 lux asph. Anyone gone to the 18 after having a wate regrets?