I am using all-in-one x-mount Tamron lens (f/3.5-6.3 18-300, love it) with x-t4, had a lot of playing with settings - and I still cannot get sharp images shooting without tripod in low light conditions. X-T4 seems to need wider aperture for low light.
So my recipe is kinda pricey - I am shooting using X-T4 during the day, but after sunset/twilight/low light/indoors have to switch to Sony A7s with similar full frame version of Tamron zoom (f/2.8-5.6 28-200) lens.
Th funny thing is even my old X-T1 with the same zoom lens giving me better picture in low-light conditions comparing to X-T4
