I posted this in another thread but here might be more appropriate. I just thought this was interesting, though it's been done better many times by others.
I just picked up some cheap extension rings for my 55/1.8 Takumar / K100D. I've only had the lens a few days. Inspiration and/or macro 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'd like to try some faint lighting, like a candle, to make the steel index markers etc. on the watch face show up. The one near the minute hand (triangle) is faintly lit in this shot by a reflection of the minute hand's glow off the inside of the watch crystal.
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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