When it comes to the 80cm class, the way the light enters is different. The diffusion, which wasn't very good with the 60cm, has improved considerably. Only used indoors, in good condition. I purchased it on Amazon, but I'm selling it because I've only used it a few times indoors and haven't used it much. A softbox converts harsh light from a flash into soft, diffused light, reducing shadows and softening hotspots. It provides a very even, large light source. There are no hotspots or concentric circles.