I have the lens adapter for my Canon 550D / Niko lenses bestellt.Die delivery has good geklappt.Das install goes well, but disassemble the aufwendiger.Für is the price that's all right. I use the lens adapter for: my Nikkor AF 50mmf / 1.8, the results are good my Sigma 70-300 F4-5.6 APO Macro the results are also well, if you use a tripod