[AZ-Observing] Re: Southern Milkyway with Sigma fisheye

---- Chris Schur <comets133@xxxxxxxxx> wrote: 

> sigma 8mm f/3.5 fisheye lens pointed at the zenith...

Chris, nice shot.  That fisheye is really sharp at f/5.0!  Your image shows the 
North America Nebula and Eta Carinae in one frame.

 
> The sky was fairly dark in the Outback, reading 21.6 on the SQM meter in a 
> bland part of the sky.

Since there was no source of light pollution down to the horizon, I wonder why 
the reading wasn't closer to 22.0.  Was the reading affected by the presence of 
the Milky Way.  I thought that people have read 21.6 from their SQM's at Five 
Mile Meadow, which is dark, but it ain't the Outback.

Tom
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