I have walked to some gardens with the EX1, seeing the plants meticulously cultivated by the caretakers with their green thumbs, and taken shots of the mind-smoothing green setting. As evidenced in the images, the Schneider lens of the EX1 manages to reproduce the images with good tonal transition from brightness to grey areas (crop at left). Certainly it is no high-grade lens costing thousands of bucks. Corner softness is noticeable. It was taken at about 50mm. But it is not any worse than its competitors.
Some green hands in photography have asked whether the F1.8 capability of EX1 has an advantage in giving bokeh to the shots. The answer is yes... if you shot in macro mode like the close-up shot of the flower below.
The answer is no otherwise for normal shots since the sensor is tiny and the focal length of 24mm to 72mm is only a conversion of the actual length of 5.2mm to 15.6mm. The following shot shows how the F1.8 will give out in normal shots. But the extensive DOF has many advantages. Of course, any veterans know that.