I don't claim that this is great photography or anything, just something a bit different (for here) and I find it interesting.
I just picked up some cheap extension rings for my 55/1.8. Inspiration and/or subject material seemed to be lacking, so I had a go at a kind of shot I've seen on watch forums (yes, there are forums that don't involve cameras).
This is a 3 second exposure at f5.6 (I think), 800 ISO, with all 3 extension tubes. The super luminova was given a good charge with a torch. I was going to say that the balance wheel of my watch oscillates at 3.5Hz and therefore the second hand moves 7 times a second... but that doesn't seem to tie in with the second image, which is a 100% crop and shows 19 different positions for the second hand during those 3 seconds. I think the explanation is that there is a very faint image on either end of the 19, making 21 total, which works - 7 per second. I remember doing something similar but cruder with a P&S camera to confirm the 3.5Hz when the watch was new. (I used to be a slight watch geek... now I've moved on
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