Re: [APML] Film Creep

["Steve Walters" <s-walters@comcast.net>]

BRC-250. It's not the optics. Collimation is excellent. On a series of
photos, one corner or the other is perfect. By looking at different frames,
I can find perfect stars in every corner. If it were the optics, the
abberation would be consistent. It's film creep.

Steve...

----- Original Message ----- 
From: "Chuck Vaughn" <aa6g@aa6g.org>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Saturday, September 27, 2003 7:33 PM
Subject: Re: [APML] Film Creep


> Steve,
>
> > Because all the trails are pointing towards the center, it's not
> > guiding or tracking errors.
>
> Sounds like coma or field curvature. What instrument are you using?
>
> Chuck <aa6g@aa6g.org>
>
> _______________________________________________
> Astro-Photo mailing list
> Astro-Photo@seds.org
> http://seds.org/mailman/listinfo/astro-photo

_______________________________________________
Astro-Photo mailing list
Astro-Photo@seds.org
http://seds.org/mailman/listinfo/astro-photo