[AZ-Observing] Re: Grand Canyon Movies

  • From: chaz@xxxxxxxxxxxxxx
  • To: az-observing@xxxxxxxxxxxxx
  • Date: Mon, 03 Jul 2006 12:50:59 -0400

Dean,

Thanks for sharing. Great images!

Chuck Shields

Quoting ketelsen@xxxxxxxxxxxxxx:

> Hi All-
>
> Since it seems a slow period with the monsoons upon us, I thought I'd post
> some animations I shot at the grand Canyon Star Party which ended a week
> ago now.  All were shot with a Canon 20Da used with auto dark subtraction.
>
> First up is non-astronomical...  It is a sequence of the Warm Springs Fire
> on the north rim.  It was shot with an 80-200 Canon zoom, set to about
> 100mm focal length.  The timer was set to 1 exposure per minute, and 50
> exposures are included (tripod was kicked before the 50...):
> http://alice.as.arizona.edu/~ketelsen/Animation_Warm_Springs.gif
>
> This is the one that started it all - shot on saturday (17 June) with a
> Nikon (yes-Nikon! w/$20 E-bay adaptor) 16mm F/2.8 full frame fisheye shot
> wide open.  30 second exposures (ISO 1600) every 2 minutes:
> http://alice.as.arizona.edu/~ketelsen/GCSP_MW_Animation.gif
>
> This sequence was taken sunday night (18 June)- smoke from the Sedona fire
> is seen low in the east.  Shot with a Nikon 8mm fisheye wide open.  @
> minute exposure every 4 minutes.  Note what looks like a Iridium Flare
> (not predicted by Heavens-above) in one freme in Hercules near the zenith.
>  You can also see me smooching with girlfriend Melinda in more than one
> frame:
> http://alice.as.arizona.edu/~ketelsen/Animation_8MM_Milky_Way.gif
>
> After the first star party sequence, I wanted one that was smoother, yet
> went longer.  This one uses 99 frames - 40 second exposures with the 16mm
> @ F/2.8 every 90 seconds, so covers 2.5 hours of the star party.  Scopes
> visible are Joe Bergeron's 6" refractor to the left, Elaine Osborne's Newt
> at center, and Dennis Young's 28" at right.  For those of you there, I set
> up to shoot thru the fence adjacent to the bathroom path - bathroom was
> the source of the red lights.  This is a "slow" version - the "fast" one
> was just to frenetic going thru so many frames so quickly:
> http://alice.as.arizona.edu/~ketelsen/Milky_Way_2_slow.gif
>
> Sorry some of them are a little large - could probably have saved the
> jpegs at lower resolution, but I don't have the time to spend further on
> it.  I hope you enjoy!
>
> -Dean
>
>
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>
>




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