When you haven't shot for a little while, you need an eye workout. So I started taking pictures around my workplace during lunch hour to practice again, and I got myself a little toy to encourage me too: the Proxar close-up lens set with the Contameter close-up rangefinder.
I'm really pleased with the image quality, since there is absolutely no degradation of quality from the "naked" Sonnar. Plus, you benefit from even more beautiful Sonnar bokeh (not shown here!) since you are focusing closer.