>>3968221>>3968222i'd get a manual focus rf if manual focusing is an concern
645 slrs were mostly work horses for studio stuff, they aren't all that good for handheld outdoors shooting bc the mirror does shakes lot; even at relatively high speeds you should be able to notice a loss of sharpness compared to an rf (most 645 slr tops at 1/250-500)
it's unlike a 35mm slr which has very light and quickly moving mirrors...
ofc there are some tricks like mirror lock up that should help getting sharper pics (pic rel, pentax 6x7)... though at the end of the day, the bronica is an outdated kit compared to an modern fuji rf camera