Have a good read HERE it is an excellent site
And HERE
Where he conclude:
Quote
IR: I was surprised to learn that quite excellent IR pictures could be acquired with the 16-85 VR. No hot spots were observed in IR. As also seen with visible-light photography, vignetting at the shortest end of the zooming range was plainly visibe in IR. When the lens was zoomed a little away from the 16 mm position, the vignetting issue diminished rapidly.
End of Quote
Is your call


 
					
					 
				
				
				
					 Reply With Quote
  Reply With Quote 
						
					 
						
					 )
)
				
Bookmarks