My goal was definitely achieved by purchasing the 1635Z and I feel that this effect will last even longer.
Unfortunately, I have hardly come to test the lens due to the poor punters.
But I think that I do not have to go further into the optical image quality, it is not in vain nominated at a relevant website as the best wide-angle zoom lens.
For me, the first results are just fantastic. But see for yourself ...
To feel I can say that so far no lens has felt as high quality as the FE 1635Z.
It is made entirely of metal. Due to the higher weight it feels much valent when my FE 55Z 1.8 .. The resistance when Zoom has been selected by Sony perfect and feels extremely high quality. The lens barrel goes out not by itself.
The objective is - for me - definitely worth the money and a great addition to my camera. I've been testing on my a7 many adapter solutions, which have not somehow felt "right"; somehow a solution with compromises.