Key: same wide angle, not same lens.

Of course, if you only use the center part of a lens, it is better than the corner part. But I am talking about the same angular size of a photo: For a cropped camera, you will need a different lens (shorter focal length). Now you have two choices:

1. Get a full frame lens with 1/1.6 x the focal length of the original lens, and use it on the crop camera to achieve the original ultra wide angle (NOW, YOU ARE TALKING ABOUT ULTRA-ULTRA WIDE ANGLE). But then, why not using this lens on the 5D?

2. Get a crop lens, which will have its own vignetting at the corners.

So you see, crop camera will not help you with vignetting.

所有跟帖： 

• Please read the article on my previous post, it illustrate -天逸- ♂ (57 bytes) () 05/17/2007 postreply 10:40:26

• Again, We are discussing about venetting -天逸- ♂ (413 bytes) () 05/17/2007 postreply 10:46:52

• You are definitely talking about different thing. -pieq314- ♀ (722 bytes) () 05/17/2007 postreply 11:05:41

• I rest my case. No point in discussing further. -天逸- ♂ (0 bytes) () 05/17/2007 postreply 11:19:37

• Thank you , to both of you. 你们的争论很有意思 (图) -Fruitpassion- ♀ (473 bytes) () 05/17/2007 postreply 13:01:49

• Glad that you find it interesting. -pieq314- ♀ (0 bytes) () 05/17/2007 postreply 20:01:10