[AZ-Observing] Re: Polar Trails on a Dusty Night

Wow. That is pretty amazing. This explains the relative lack of noise in the 
final result. Thanks for the clarification. Great work, Chris.

----- Original Message ----- 
From: "Chris Schur" <comets133@xxxxxxxxx>
To: <az-observing@xxxxxxxxxxxxx>
Sent: Sunday, April 22, 2007 1:30 PM
Subject: [AZ-Observing] Re: Polar Trails on a Dusty Night


Hi Sam, yes, the 38 images were stacked in photoshop
with "lighten" which combines all the images into a
seamless set of arcs.

Chris
--- sam@xxxxxxxxxxx wrote:

> Hi Chris -
>
> Very nice image. I am a little confused by the
> exposure described as 38 x
> 3m. Did you stack 30+ frames to get the seamless
> star trails?
>
> Sam
> Tucson
>
> <<<
>
http://www.schursastrophotography.com/xtiastro/polartrails042007.html
>
>

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