Because of the good reviews I decided to buy the sun visor for my Sony Alpha 6000. The delivery was fast and without problems. With a little feeling the sun visor was attached quickly and without problems. They will not budge on my lens, it wobbles nothing. She makes - especially for the price - quality impression. Only attaching the supplied lens cap sometimes hooked something. As far as I was therefore very pleased with the panel. After use on vacation now turns out, however, that in some pictures with minimum focal length of 16mm strong black shadows are displayed at the corners. JPG pictures fall this because - as I suspect - any lens adjustments are already included, not on. In the raw recordings are all on show, can indeed be removed in post production on profile correction of the objective rule. Some of these places were in post-production of the sky but white.
Update as of 10.04.2015: Perhaps due the shadowing that between the sun visor and the lens, a filter was screwed. Then the aperture in combination is probably no longer "fit". Presumably, you can remedy the problem if one does not use the smaller step-up ring of aperture and only the outer ring of the diaphragm screwed onto the lens + filter.