>>4356317>>4356348that is one of the budget x mount lenses.. what body? idk it seems your circumstance could be a bit outside of the norm. i have the xf 18/f2 on an xpro2 focus just fine, in the dark. pic related and the shot of kids playing above. granted, not wide open, but maybe you could consider compromising on widest aperture for your shots.. in any case, the zf also seems like a solid choice and i haven't heard anyone complain about the af on it