This is a manual lens with no electronic contacts, hence no EXIF data to camera. Therefore the aperture values and focal length given under the images when displayed larger may not be correct.
You can buy this lens at: TTArtisan Store, Amazon, B&H for $298 (Affiliate links)
Martin is living in Stockholm and has a Master’s degree in Computer technology. He has also been a passionate photographer for 45 years and used all kinds of cameras over the years.
Currently he is using modern as well as vintage lenses on his Nikon Z-mount cameras.
You can follow Martin on Instagram.