RE: [APML] registering images...

["Lane, Jason R" <jason.lane@navy.mil>]

I agree.  Before using Registar, aligning images took most of my effort.  I tried doing this in Photoshop without much success.  After I bought Registar, I found myself wondering why I waited so long.  Makes it so very easy.  I'm glad to say that I take aligning and stacking images very much for granted now.

Everything else I need to do can be done in Photoshop.  When I was trying to decide on Registar vs. programs that registered and also did image processing, I had the thought of "why should I pay more for redundant features?"  Since I already had Photoshop, that thought clinched it.  I'm very happy with the combination (Registar and Photoshop).

-Jason

-----Original Message-----
From: astro-photo-bounces@seds.org
[mailto:astro-photo-bounces@seds.org]On Behalf Of Don Westergren
Sent: Wednesday, September 01, 2004 11:50 PM
To: Discussion of Film Astrophotography
Subject: Re: [APML] registering images...


Jeff,

You won't go wrong using Registar.  It was specifically written to register
astro images and does a phenomenal job. I can't compare it to some of the
other newer programs.  My experience was with Picture Window and Photoshop
trying to register two 30 minute shots of the Lagoon a couple years ago
without success.  The pictures were on the same roll, the second taken
immediately after the first one, yet the stars would not line up.  I got
little crescent star overlaps across the picture.  Registar did it
perfectly.  Registar aligns each and every star in the picture, up to
thousands of stars.  I believe in my case the two pictures were affected by
atmospheric refraction, about 1/2 star diameter stretch between shots.

Don



> Argh.
>
> I've got some images of the viel that I took on the same night,
> with the same setup, etc.  These were "consecutive" one hour exposures.
> The only difference in these images should be a slight framing
> difference as the autoguider probably got jilted when I wound
> the camera for the next frame.
>
> They are medium format, and scanned at 1200dpi resulting in about
> a 2k x 3k pixel image.
>
> Registering in PS7.0 doesnt work for me.  Maybe I dont have the
patience/dexterity.
>
> I tried registering in aip4win.  After stacking, the result looked like
> an inkjet image left in the rain.
>
> Should I bite the bullet and spend $149 on registar?
>
> Or should I step up to the plate and get MaximDL/CCD
> for its registration feature plus all the other good
> stuff it can do?
>
> thanks
>
> jeff



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