How much damage can a lens front element take before it affects the picture quality?
Here are some links... and some experiments done....
http://photo.net/nikon-camera-forum/00WSXm?start=10
http://kurtmunger.com/dirty_lens_articleid35.html
http://www.lensrentals.com/news/2008.10.30/front-element-scratches
Here are some links... and some experiments done....
http://photo.net/nikon-camera-forum/00WSXm?start=10
http://kurtmunger.com/dirty_lens_articleid35.html
http://www.lensrentals.com/news/2008.10.30/front-element-scratches