Today I tested an other wide angel lens from the 70/80s the Auto Weltblick. Its a strange name, its German for worldview and it is one of those lenses made by a lens manufacturer for an other that will give it its own name. In this case I think its made for Neckerman in Germany, their is not mush on the internet about this brand and lens.
On the X-T1 this lens is almost a 35mm so a nice focal length. It is well build and easy to use. My first impression is that it is sharper overall than the other wide angel I tested, the 28mm Orion but it has more barrel distortion. For now it is definitely a lens I will bring with me, I like it for architecture inside and outside and it might be good enough for landscape photography. All the pictures here are edited in Lightroom