Great optical quality for improvement Details

About the lens is plentiful and quite rightly, mostly positive, were discussed. A few days ago in possession, I can say that the positive optical properties are true: Rattenscharf, excellent workmanship. I will not deal with tests and technical details myself. Everything I've ever photographed corresponds to my needs completely. BUT: How do you attach a lens with this quality a lens hood that must be screwed which can not be fixed reversed on the lens at the Transport and the impossible Attaching the Lens Cap. Every ambitious photographer works with interchangeable lenses (a major reason for the purchase of a DSRL). The necessary accessories such camera (this includes the lens hood of a lens without a doubt) should fast and compact use, but also be stowed. Here Sigma offers high quality, but unfortunately poor Praxiseitauglichkeit. Still, I would buy this lens again!