Re: [APML] M31 pentax67 e200 FSQ-106...

["Stuart Heggie" <stuart.j.heggie@sympatico.ca>]

Okay, I'm blown away! Can you explain how that works? 

Beauty in things exists in the mind that contemplates them.

Stuart
http://www3.sympatico.ca/stuart.j.heggie/Stuart.J.Heggie/
Flesherton, Ontario, Canada

----- Original Message ----- 
From: "Wei-Hao Wang" <whwang@gmail.com>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Tuesday, August 17, 2004 10:13 PM
Subject: Re: [APML] M31 pentax67 e200 FSQ-106...


> Hi,
> 
> Jeff's image is absolutely beautiful.  
> 
> It may not be true that the dynamical range of slides is too small
> of objects like M31.  I found that even a +2 pushed Provia 400F 
> could well record the details in the core and the outer spiral arms.
> To avoid a saturated core of M31, we certainly cannot use too 
> long an exposure time.  In many cases, this will make the outer
> spiral of M31 look very faint on slides.  However, modern slides 
> like Provia 400F, E200, E100S have very good S/N in the shadows.
> The details in the outer part of M31 can be easily brought out by
> digital nor non-digital processes.
> 
> When I said "digital process", everybody knows what I meant.  
> How about "non-digital process?"  Last week I posted my 
> non-digitally processed M31on astromart:
> http://www.astromart.com/forums/viewpost.asp?forum_post_id=240901&poll_id=&news_id=&page=
> How do you think?
> 
> Cheers,
> 
> Wei-Hao
> 
> -- 
> ________________________________________________________________
> 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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