The problem is that you never have an open aperture, unfortunately I can only confirm.
Aaaaaaber, I fixed with some adhesive tape this problem.
Just a little scotch tape to the aperture pin of the adapter stuck, and already I can use a fully open aperture.
I have it deducted even no star, but since this relatively small problem could be remedied with very little effort.
And especial at such a low price, you can not really mekkern)
In my opinion: buy recommendation!
