Build quality: good
Filter thread: 58mm
Infrared Mark: yes
A superbright 35mm that becomes a fast standard lens on the *ist DS. Fairly large but well built.
Another Porst lens with unknown OEM origin. Bought on ebay and quite a large lens for 35mm. You know why it is so heavy, once you look at the rear element. It almost touches the aperture pin! This thing is a precious chunk of glass and metal.
For some boring brick wall test images, look here.
More shots with this lens in my Gallery: Porst_35mm_1.8.html