7Artisans 50mm f1.1 七工匠 album and thoughts

I received this lens from Amazon last week, and have been enjoying taking pictures with it. Here's what I found so far:

• Great size for an f1.1 lens
• Center is sharp enough wide open
• Corners are a little soft, stopping down doesn't help much. (doesn't bother me, tho)
• Bokeh is smoother than Noctilux f1.0 
• Nice color rendering
• Good contrast
• A little back focus at minimum focus distance on my M9
• Click-less aperture ring is nice
• Focusing is very smooth
• Does not vignette!? Maybe the lense profile corrects it? It’s coded as Noctilux f1.0

In short, I like this lens very much. Feels like using a faster modern Jupiter 3 in M mount. Here are the pictures I took over the past few days.