I use the Firefly Beauty Box FBO 65 with a Canon 580 EX II. The workmanship is excellent and the beauty / Octobox is super fast (2 minutes) assembled without annoying fumbling. The flash can be easily and stably mounted. Other lightning likely can be installed without any problems, because the position on two rails can be adjusted easily in two dimensions. Who a weaker flash than the 580 EX II (Guide Number 58), possibly should resort to FBO 50 (50 cm diameter instead of 65 cm). When the Canon 580 EX 65 FBO II meets already at its limit. The flash results are very good. The FBO projecting a uniform, beautiful light (no color cast) with soft shadow history. It has no internal diffuser, but the m. E. also not necessary. Who needs yet still softer light, easy should put a diffuser / bouncer in front of the flash. But beware: this costs 1-2 diaphragms. Conclusion: ideal if you want to get for portrait shots with the flash system, the maximum.
