[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

Re: [APML] New FILM images



John,

 Yes, I tried film LRGB once and found some pretty weird colors too.
Unfortunately I did not look into this further. Maybe the non-linear
response of film causes this. I do not know.

Loke



"John C. Mirtle" wrote:
> 
> Thanks Loke!
>     I do have some hi-rez W92 tech pan versions of 3 of the images,
> combining them with color was in my plans. I have had mixed success doing
> this though. Applying the TP image to produce an LRGB almost always produces
> bizarre colors. Hot pink nebulas, surrounded by billions of tiny red stars.
> I may try a blend - as Rob Gendler mentioned earlier - with the TP and the
> red channel.
>     I still haven't been able to get uniform background density with
> tri-colour TP Schmidt shots, so I hope I can get this working. This is why I
> was experimenting with different films. I wanted to find the film with the
> best overall colour balance to mix in with tech pan. Now comes the fun part.
> :-)
> 
> John Mirtle
> Calgary, Ab. Canada
> 
> ----- Original Message -----
> From: "lkt" <tan@cox.net>
> To: <astro-photo@seds.org>
> Sent: Sunday, September 01, 2002 11:56 PM
> Subject: Re: [APML] New FILM images
> 
> John,
> 
>  Very nice images with your Schmidt. Those exposures are fast. If you
> have any TP exposures, you can do an LRGB for better resolution.
> 
> 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>