FreeLists / az-observing / [AZ-Observing] Re: Summer Night Sky from Payson

[Chris Schur <comets133@xxxxxxxxx>]

HI Brian, I havent had the time yet to try a stop
down, but thats planned.  Im sure the residual
chromatic abberation will be improved for sure.  Pairs
of shots with fisheyes are very hard to register!  I
will see if registar can handle this task.

chris
--- Brian Skiff <bas@xxxxxxxxxx> wrote:

> >> 
>
http://www.schursastrophotography.com/xtiastro/fisheye090907.html
> 
>      Looks fine.  Here's what I'd do:
> 
> o   stop it down (if possible) to the half-stop
> between f/4 and f/5.6
>     (i.e. about 1 stop down from wide-open)
> 
> o   take pairs of shots like this with a slight
> shift in the camera
>     (few pixels equivalent) every couple of hours
> from dusk to dawn
>     on all reasonably clear nights
> 
> 
> \Brian
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> 



       
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