I've only seen one other!! So, you set the exposure then rotate the thingy? Must try this sometime, love your light trails, really pretty........day off?!!
WOW this turned out so very cool Peter! Thanks for the mention in this, you are too sweet :) I like the way yours looks like I'm traveling at light speed!!! :) hehe Awesome fun! :)
@fannyb Fanny, yes, it's well documented. You set a long exposure, push the shutter then zoom in to the subject. It's a technique I found is surprisingly sensitive to various element,; speed of zooming, delay to commence after pushing the shutter, smoothness (is that a word?) of the zoom, whether you use a flash, whether the flash is 1st or 2nd curtain (i.e. just after the shutter or just before the aperture closes) and a host of other things I can't even think of at the minute. In other words, it is deceptively difficult, like most of the "easy" shots you see here on 365.
@pachelbel Veronica, you can search "zooming" in the discussion threads, there's bound to be a very well informed exposition of the technique there. Basically, with a zoom lens ability on the camera, you set a long exposure time, then immediately the shutter is released yo zoom in (or out). It takes a bit of getting used to (see my reply to Fanny, above).
@lemonsforsale Thank you, Amy!
@eosmusician Thanks, Arnold, appreciate that.