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

Re: [ATM] SALT II


On Mon, 7 Nov 2005, Dream - Telescopes & Accessories, Inc. wrote:

> Dominic,
>
> The latest issue of Sky & Telescope reports this, now on line telescope,
> SALT, as well.  But it states it is mainly for spectroscopy work.  Science
> instruments (cameras) can produce results that amateur astrophotographers
> would consider horrendous.  Most of the time though they are not after
> pretty pictures.  They are after science.  Science isn't always
> pretty.  But... beauty is in the eye of the beholder.

Well, I do science imaging and my images never look this horrendous,
which is why I asked about this. Partly it was humor, but partly
trying to find out more about the camera and optics. It appears that
the chip(s) has defects that my imaging systems do not have. The
aberrations seens in the images are also a bit confusing and I
would never want to do any kind of photometric analysis on such
images, at least not without learning what this is first. I do not
encounter such effects in my work.


> As far as the aberrations part of your question, I couldn't find anything
> on SALT's web site to indicate what the 91 hexagonal mirrors are.  You
> might try searching around on HET's web site, since these two instruments
> are so similar.

Kind of my point. Nothing was specified yet.

Dominic-Luc Webb


_______________________________________________
ATM mailing list http://www.atmlist.net/