Chrysanthemum.
Now trying out another 40mm lens - Nikkor 40F2.0 SE. Sharp enough for me. View other shots taken with this lens
here. I would say that this lens, while a lot newer, is comparable to another 40mm, the Canon EF 40F2.8.
Here are shots taken with the 40mm EF lens.
Another 40mm favorite is the Voigtlander Nokton Classic 40mm F1.4 MC lens. It renders images in a way that is reminiscent of film. View other shots taken with this lens
here.
Have used a variety of 40mm lenses, view shots taken
here.