Exposure time should be real Blur (at right angle to motion) length divided by vehicle speed - problem is that the blur is hard to determine in this photograph. Want a guess? 1/410 sec.! :( Andy On Aug 15, 2012, at 1:42 AM, karl shah-jenner wrote: > 'a friend' just shattered his helmet and most of the frame faring when a few > stone chips from oncoming vehicles hit his bike at speed.. yeah, this person > was goofing around a bit too much. > > http://members.iinet.net.au/~shahjen/speed.jpg is the image, and I'm curious > whether anyone would be able to suggest a method of determining the exposure > duration based on the speed and the (small!) amount of motion blur in the > frame? >
