Re: [APML] Another Rho-Ophiuchi/Antares Region

["Franklin A. Holub" <lists@my-spot.com>]

Glenn,

Sorry for the confusion... Let me clarify...

- The camera was a Minolta Maxxum 9.
- The lens was a f/4 Sigma EX 100-300 APO zoom set to f/4.5... See...
http://www.sigmaphoto.com/html/pages/100_300_ex.htm
- The camera and lens where riding piggyback on my Meade 10" SCT OTA (the
10" was photographing M4 at the same time).
- The mount was my Losmandy G-11 autoguided with a ST-4 through the 10" via
a Lumicon GEG.

Hope this clarifies things...

Frank
http://www.my-spot.com

----- Original Message ----- 
From: "glenn shaw" <glennshaw@alaska.net>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Wednesday, June 04, 2003 2:00 AM
Subject: Re: [APML] Another Rho-Ophiuchi/Antares Region


> Frank:
>
> what optics are 9 sigma EX 100-300 APO on 10 inch f10 SCT??? This
> totally confuses me. do you mean a Sigma manufctured camera lens of 100
> to 300 mm focal length, apolcromatic lens mounted on top of a 10 inch
> Schmidt Cassegrain Telescope used as guider?
>
> glenn shaw
>
> Franklin A. Holub wrote:
>
> >I was happy to get some good results from my trip to New Mexico Skies a
> >month or so ago (end of April). I have always wanted to shoot this region
> >for myself and finally did it - below is the link to my humble attempt. I
> >don't think I will ever tire of seeing astrophotos of this region and
hope
> >others will post more of them!
> >
> >http://www.my-spot.com/Rho-Ophiuchi.htm
> >
> >This is a composite of 3 exposures on Fuji Provia 400F (Pushed +1): 20
Min
> >(1) 60 Min (2) @ f/4.5 using my Maxxum 9 and Sigma EX 100-300 f/4 APO.
The
> >sky was as dark and transparent as I have ever seen, however, it was also
> >very very windy. Links to larger versions are available at the bottom of
the
> >page.
> >
> >Frank
> >http://www.my-spot.com
> >
> >
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> >
> >
> >
>
>
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