Being addicted to the quality of 50mm (; ie = UTF8 & qid = 1400629466 & sr = 1-1 & keywords = + 50mm Pentax) but require a greater angle, I naturally turned to this 35mm.Malheureusement if they appearance resemble the photographic rendering has nothing to do. It remains honest, but very far from the 50 mm soft blur, soft and flawless.