Re: [photo-3d] Re: lightning trigger

[Greg Erker <erker@xxxxxxxxxxxxxx>]

>The idea of using a sound-activated trigger to photograph lightning
>reminds me of an addendum to a biology slide show I saw in college.
>The presenter showed his "After the Lightning" pictures at the end of
>his presentaion.  He stood on a bluff and watched for lightning and
>as
>soon as he saw it he clicked the shutter.
>
>What is the speed if light again?  What is the duration of a flash?

  In good lightning storms you often get
second and third strokes going down the
same ionized channel. So tripping the
shutter after seeing the first one could
be reasonable effective.

Greg E.