Re: [APML] fisheye aurora

["Brian Larmay" <astrobri@ameritech.net>]

Hi John

I was just checking out one of those screw on jobs on ebay:
http://www.imallnyc.com/html/photo/tip/example.html
I thought about getting one of these just for meteor showers and aurora
photography.

Brian

----- Original Message -----
From: "John C. Mirtle" <jmirtle@shaw.ca>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Friday, February 28, 2003 1:23 AM
Subject: [APML] fisheye aurora


>     Yesterday Matt posted an interesting fisheye image taken with a lens
> which may at first appear to have limited astrophoto usefulness. By a
> staggering coincidence,  the email arrived as I was starting to scan my
Feb
> 1992 aurora shots, which include a fisheye shot of an all-sky aurora. To
see
> how much of a pain aurora can be, please check out
> http://members.shaw.ca/john.mirtle/fisheye.htm . It might appear that
there
> isn't any aurora in Lepus, but if you look closely there are clouds
instead.
> I am not sure how big the FOV is, but you can easily pick out from
> Cassiopeia to Sirius.
>     South is near the bottom on this 2 minute Fujichrome 1600 exposure.
The
> "fisheye" was a screw-on adapter which I installed over a standard 28mm
> lens. Optical quality is not as nice as image Matt pointed us to, but then
> aurora doesn't require the highest quality optics.
>
> comments welcome!
>
> John Mirtle
> Calgary, Ab. Canada
>
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