*** CTF Mini Challenge #106: Panning

Started Jan 2, 2007 | Discussions thread
J Siva
Contributing MemberPosts: 725
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Re: You almost got it. The answer (and a bonus question) within
In reply to agenkin, Jan 10, 2007

agenkin wrote:

Another question: how can can you estimate the speed of the front
biker, judging from the picture and the shutter speed? No need to
do the calculation, just explain the principle.

Calculated using the distance the reflector attached to the spokes has travelled in 1/15s.

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