R: Re:[APML] orion mosaic

["paolo gramigna" <p.gram@tin.it>]

Hi Wei-Hao,
Too bad that professonally made posters are not to be expected soom. I was
asking myself if there can be any legal way to turn around that situation,
but you are the best arbiter about that. Anyway, i'll be very happy is it
will be possible to have access to the large file version, for personal use.

Looking forward,
Paolo gramigna

> -----Messaggio originale-----
> Da: astro-photo-bounces@seds.org 
> [mailto:astro-photo-bounces@seds.org] Per conto di Wei-Hao Wang
> Inviato: giovedì 31 marzo 2005 13.51
> A: Discussion of Film Astrophotography
> Oggetto: Re: Re:[APML] orion mosaic
> 
> Hi,
> 
> Thanks for the comments from everyone.
> 
> Robert, how do you think about this:
> http://www.ifa.hawaii.edu/~wang/misc/Orion__R.jpg  ?
> I enhanced the R channel to to bring out the faintest H-alpha 
> light in this image.
> The "standard version" in the webpage had relatively little 
> curve stretch.  This is to preserve the full dynamical range 
> of this field, instead of emphasizing the depth.
> 
> One of the difficulties I had when flat-fielding this image 
> was that there is H-alpha emission almost everywhere.  This 
> made the identification of "background"
> regions very difficult and tricky.  Indeed, I believe some 
> large scale, faint H-alpha emission was removed from the 
> image by my imperfect flat fielding.  This is the main 
> limiting factor of how deep I can go.  
> 
> The crowded star field in the upper left is part of Milky 
> Way.  See this:
> http://www.ifa.hawaii.edu/~wang/gallery/picutres/WinterMilkWay2003.htm
> 
> Cheers,
> 
> Wei-Hao
> 
> ps, My US visa doesn't allow me to make money outside the 
> campus.  So there won't be any commercialized posters from me 
> in the near future, I guess.
> 
> --
> ________________________________________________________________
> Wei-Hao Wang  :)
> 
> Institute for Astronomy at University of Hawaii
> 
> Address:                       
> 2680 Woodlawn Drive         Personal Website:
> Honolulu, HI 96822             http://www.ifa.hawaii.edu/~wang
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