I like jumping spiders. This one was scouting from behind the window lock in our bedroom.
Behind the Lock by
k kwb, on Flickr
This was shot with Q7, Vivitar Series 1 VMC F2.5 macro for Canon FD mount at F/9, and a dedicated Vivitar 1:1 Macro adapter which I think is a 2x teleconverter, therefore combined with the lens it's F/18 in reality (!!).
BTW, this might be a good example of why I don't worry too much about blurring due to diffraction. I like this picture anyway even if this is not THE sharpest picture I can take with my existing lenses in theory.