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(meteorobs) Re: Leonids from Arizona and question
Dale,
From my personal experience I have found that with a wide field lens
such as a 24 mm you would need to use a very fast film such as Fuji 1600
or Konica 3200. A -2 magnitude should have appeared on your photos
unless your lens was inadvertently out of focus or set at a higher f
ratio.
This year I used a 28 mm f 2.8 with Fuji 1600 film. I managed to catch
approximately 10 meteors on 36 frames. Of course the activity was
slightly higher in Spain than it was in Arizona.
I hope this helps.
Clear Skies!
Robert Lunsford
Dale Ireland wrote:
>
> Hello
> I just wanted to add my observations to the group and ask a photo
> question.
> We traveled to Arizona from Seattle to avoid the clouds and were very
> lucky to be the guests of the Phoenix east valley Astronomers at their
> dark sky site 30 miles east of Phoenix near Florence junction. After the
> radiant rose we started seeing about 2-3 Leonids per minute with
> multiples every now and then. There was a definite lull (about 1 every 5
> minutes) from 1030-1130 UT and then an increase back to 1-2 every minute
> around 1200UT.
> I was very disappointed with my photos. I had a few meteors pass through
> my photographic field but none were recorded on the film. I used a 24mm
> lens and Royal gold 400 at f/2.8 and thought that would catch some but I
> was shut out. We had some -2 to -4 meteors that left trails for a couple
> seconds but none showed on the film, not sure what I did wrong. Is this
> film too slow for meteors? Anyone have success with a similar setup?
>
> Dale Ireland
> 47.7N 122.7W
> Astronomy Page http://www.drdale.com
> Comets, Satellites, Eclipses, Photography, Fabrications
>
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