View Single Post
  #13  
Old 13-05-2010, 09:58 PM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 18,185
Yeah FWHM of 5 is pretty rough. Last time I checked at my dark site it using CCDsoft focus graph to tell the FWHM is was between .95 and 1.5.
I think that was better than normal but 5 seems very high.

That would account for it. Don't get me wrong lovely images just the same. We are all limited by the local conditions.

Greg.
Reply With Quote