f/2 is seriously sweeet after a year with a kit f/4-5.6. This 50mm f/2 ML is the lightest lens in the Yashica lineup, but a negligible 10g heavier than the Canon EF 50mm f/1.8. It makes a 40D look like a monstrosity.
I’d like to compare the canon pancake with this one sometime, length-wise.