Since I have been in love with photography, I always look for fast lenses and seek their signature bokeh. There are several options which you try without having to spend a heck of money buying the legendary Noctilux (well, quality varies, please remember..). I am not writing anything technical here since I am not a lens master nor have studied lens engineering. The comments are based solely on my own feeling, usage and experience I have had with it. Here goes the first lens in my arsenal, Canon 50/0.95 modifies to Leica M mount. This guy was developed as a standard lends for Canon 7 rangefinder camera and marketed in August of 1961 with a retail price of 57,000yen at that time (86,000yen with Canon 7 body).
It weighs in about 605 grams and is a little slow to use due to its large focus ring. Overall I have found this lens gives quite pleasing bokeh and is really fun to use, especially with post processing tweaks. It might be a little soft and too creamy in many eyes, what's your taste?