Originally Posted by Doug
Colton, nice colors! And this "brick wall test" reveals a small amount of barrel distortion.
What is the location? We have one like that in my town...
Ya, the Pentax 43/1.9 Ltd. does have a very minor amount of barrel distortion. My Contax G Zeiss 35/2 has a bit more distortion than the Pentax 43, but it's normally not noticeable in both lenses unless you shoot a brick wall. I've shot this wall with the Pentax 43/1.9, Zeiss 35/2, CV Skopar 35/2.5, Nikon L35AF, Minolta PROD-20S, and my Fuji Klasse with 38/2.6. The Fujinon had the least amount of distortion, but it does have some sharpness loss in the corners.
This wall is in Ashland, Oregon, on the side of the Peerless Hotel. I'm sure it's been photographed thousands of times. I like using it for lens comparisons.