Re: [APML] NGC7000 with a false comet ! (and Konica 400)

[Wei-Hao Wang <wang@IfA.Hawaii.Edu>]

Hi Dom,

I'm still feeling optimistic about Centuria Super 400.  We just need 
more tests to make a firm conclusion about its performance.  What's the
typical temperature and humidity of your site?  Mine is like 5 to 10 
degree C and 10% to 20% humidity.

The NGC7000 picture of mine is not a stacked image of four exposures.
It's a mosaic of 4 frames, each with exposure time 85 minutes.  So
there is only one negative for most objects in the image, except for
the small overlap regions between frames.  

It's always better to compare the original negatives.  But even if
we twist the image in PhotoShop, we can still tell what's on the 
negative from the S/N of the image.  

Cheers,

Wei-Hao


______________________________________________________________________
Wei-Hao Wang  :)

Institute for Astronomy at University of Hawaii

Address:                       Phone: 808-956-9867                  
2680 Woodlawn Drive            Personal Website:
Honolulu, HI 96822             http://www.ifa.hawaii.edu/~wang
______________________________________________________________________


_______________________________________________
Astro-Photo mailing list
Astro-Photo@seds.org
http://seds.org/mailman/listinfo/astro-photo