Re: [APML] HH-Flame shot uploaded

[Alan Voetsch <alanv12952@yahoo.com>]

Steve, Gary, and Bill,

Thanks for the nice comments.

--- "William R. Mattil" <wrmattil@ix.netcom.com> wrote:
> You page references an "original" what exactly is that ?

To tell the truth, I'm not exactly sure. It's some sort of huge,
blown-up version of the main image.


> It  appears to 
> have some field rotation that also appears to a much lesser extent in
>  the image the provided link references.

I can't tell what it is. It's not evident on most of the bottom of the
shot. I'd hesitate to call it field rotation. I do have problems with
'drooping' when negatives are mounted in the carrier for scanning.
Usually though, that shows as star elongation in the corners, with the
elongation pointing toward the center of the image. That is why I have
been trying to mount the negatives in slide mounts. At this time, I
don't remember if this one is mounted or not. 


> Also any hypering ? or was the 
> SHQ straight out of the can ?  Good color regardless. Do you get any 
> vignetting from the tracker ?

Right out of the can. Vignetting is a problem. Although I'm not sure if
it's related to the tracker or not. It is most evident on longer shots.
This one didn't need to be run through PILE, so it wasn't bad.

Alan



SCT Astrophotography: http://www.pbase.com/avoetsch/astrophotography
FS-102 G-11/Gemini: http://www.pbase.com/avoetsch12952/tak_fs102
& http://www.pbase.com/avoetsch12952/fs102
& http://www.pbase.com/avoetsch12952/takpf


		
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