Got my hands on a Nikkor 200mm f/4 Ai for $60, as it's focus ring is extremely tight. I am waiting on some grease I ordered that I want to try on this one, but took it out today still to see how it's optics are. The tight focusing wasn't fun but the lens seems good so far. Sharpness in closer ranges is good, but not excellent, and on distant subjects it is ok. CA is a very visible issue with this lens. Primarily because the aberrations have quite a wide color range they exhibit, making it more tedious to remove it without effecting other colors in the image. Contrast is excellent though, even in very bright and glaring scenes. The bokeh is fine. I would have enjoyed having f/2.8 available for better separation, but then again, it's compact size was a joy to handle. I remember not always feeling comfortable using my Sigma 180mm f/3.5 macro in public, but this lens feels very unassuming. Such are my initial thoughts after shooting with it on a bright day. In the coming week I will be testing it's macro capabilities and night shooting.
f/4
f/11
This scene was almost directly under a very bright sun across a couple hundred yards of water.