Thread: Help with widefield astro/landscapes lens (ultrawide 10-22mm)
View Single Post
  #56  
Old 23-02-2012, 12:16 AM
Octane's Avatar
Octane (Humayun)
IIS Member #671

Octane is offline 		 
Join Date: Dec 2005
Location: Canberra
Posts: 11,159
DPP has an in-built lens distortion correction facility. Made by Canon.

Luis, I must have an excellent copy of the 17-40mm f/4L USM. I shoot at f/16 and it is sharp at pixel level.

H
Reply With Quote