Re: [APML] Lagoon and Triffid Region

[lkt <tan@cox.net>]

Bobby,

 Thanks. I have not done mosaics with the Schmidt. I am sure it's
possible but I expect it to be a lot of work. Actually, I have never
done any mosaics with anything <g>. 

Here is a much higher rez version.

http://www.starryscapes.com/tmp/m8_m20_wide_large.jpg

Let me know what you think. I believe this resolution is getting to the
breaking point. If I had to guess the resolution of the 8" Schmidt with
TP is somewhere between that of a 5" to 6" refractor with color emulsion
but with a noticeaably larger field. 

Loke


Bobby Middleton wrote:
> 
> Really deep Loke. The HC110 plus the red channel composite was excellent
> strategy for this high dynamic range target. Schmidt cameras are just
> capable of sooo much with the TP. Excellent work. Would you post a high res
> shot for us to see just what that Schmidt camera is capable of on TP?
> 
> Have you ever attempted mosaics with the schmidt shots?
> Bobby Middleton
> 
> ----- Original Message -----
> From: "lkt" <tan@cox.net>
> To: <astro-photo@seds.org>
> Sent: Wednesday, May 29, 2002 3:54 AM
> Subject: [APML] Lagoon and Triffid Region
> 
> >
> > OK, here is another shot of the M8 (Lagoon) and M20 (Triffid) region in
> > Sagittarius. This was taken with an 8" F/1.5 Schmidt camera with
> > tricolor filters on hypered Tech Pan. HC110 Dil. B was used to process
> > the film for 14 mins. This developer was selected due to the extreme
> > brightness of the core of M8 and M20 which means that the image would
> > have a lot of dynamic range. Even so, the red channel was done with a
> > composite of a 5 min and a 25 min exposure with a #92 filter. The long
> > 25 min exposure with the #92 filter can extract a lot of the red
> > nebulosity in this region but the cores of M8 & M20 were saturated. More
> > exposure data is on the webpage. Comments are welcome.
> >
> > http://www.starryscapes.com/nebula/m8_m20_wide.html
> >
> > Loke
> >
> > --  APML Archives at <http://astro.umsystem.edu/apml/>  ---
> >              Unsubscribe at <majordomo@seds.org>
> 
> --  APML Archives at <http://astro.umsystem.edu/apml/>  ---
>              Unsubscribe at <majordomo@seds.org>

--  APML Archives at <http://astro.umsystem.edu/apml/>  ---
             Unsubscribe at <majordomo@seds.org>