[AZ-Observing] Re: [EVAC] Aurigid Meteor "Storm": Photographic Results

  • From: Tom Polakis <tpolakis@xxxxxxx>
  • To: Mike Bakich Astronomy <mbakich@xxxxxxxxxxxxx>, Rich Jacobs <rdjacobs@xxxxxxx>, Randy Peterson <rgpeterson@xxxxxxx>, gallery@xxxxxxxxxxxxxxxxxxx, Arlene Schur <2arlene@xxxxxxxxxxxxx>, Lon Shelton <bitsylon@xxxxxxxxx>, Vince <ne7y@xxxxxxx>, Fraser Cain <info@xxxxxxxxxxxxxxxxx>, Dawn Schur <dschur@xxxxxxxxxxxxxx>, Serge Theberge <astrophoto@xxxxxxxxxxxx>, Chuck Burton <cburton@xxxxxxxxxxxxxxxxxxxxx>, Bob Erdmann <boberdmann@xxxxxxxxxxxx>, Bernie Sanden <bsanden@xxxxxxx>, Stuart Heggie <stuart.j.heggie@xxxxxxxxxxxx>, "Rick Rotramel AZ77)" <rick.rotramel@xxxxxxxxxxxxx>, Joe Orman <joe.orman@xxxxxxxxxxx>, Robert Nemiroff APOD <nemiroff@xxxxxxx>, ARTHUR PICCINATI <apiccinati@xxxxxxxxx>, Dawn-P17662 Schur <dawn.schur@xxxxxxxxx>, comets133@xxxxxxxxx, Az-Observing List <az-observing@xxxxxxxxxxxxx>, Rick Scott <rmscott@xxxxxxx>, Thelma/John Ofarrell <thelmaann@xxxxxxx>, Adam Block <ngc1535@xxxxxxxxxxxxxxxxxxxxx>, Peter Wehinger <pwehinger@xxxxxxxxxxxxxx>, "Jerry Bonnell APOD)" <bonnell@xxxxxxxxxxxxxxxxxxxx>, Don Goldman <don@xxxxxxxxxxxx>, Albert Levy <alevy1@xxxxxxxxxx>, Paul Tierney <palaeopaul@xxxxxxxxxxx>, EVAC list <evac@xxxxxxxxxxxxxxxxxxxxxxx>, Rik Hill <rhill24@xxxxxxx>, Steve Coe <stevecoe@xxxxxxxxx>
  • Date: Sat, 1 Sep 2007 14:26:20 -0400

Chris,

It appears that you have made the same mistake as everybody else who buys the 
Sigma 8mm lens.  You took the lens cap off, but failed to remove the cap 
retaining ring, which vignettes the image.  Remove that ring in the future, and 
you will gain an additional 20 degrees along the horizontal axis.

Tom
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