Still-life arrangement without and with a diffuser
I have used a Bowens Flash light.
With no diffuser
1 sec at f/13.0 ISO 100
Detail of same without soft box
With soft box to diffuse the light
1.0 sec at f/13.0 ISO 100
Without the soft box the contrasts are more pronounced and the edges are harder. I prefer the softer effect effect with the diffuser.
I append two more photos where I think the effect is clearer to see: the first without soft box and the second with.
Without soft box
1/60 sec at f/8.0 ISO 100