To get the amateur photographer a reasonable and not too expensive flash, I found after some searching the Nissin Speedlite Di622, which fits my Canon 500D. The original Canon, Nikon and Sigma devices were not sustainable for my wallet. After delivery by Amazon was performed within 24 hours, I have of course made immediately the first recordings to the sample. The results and the ease of use (particularly the simple setting the flash intensity) have now fully convinced me. There are (almost) all the advantages of the expensive equipment available, and for a much-photographed "Hobby'ler" this device is fully recommended, the guide number for the digital work has far exceeded my expectations.