DPReview.com is closing April 10th - Find out more

Canon Ef 16-35 f4 Decentered or some other issue?

Started 8 months ago | Discussions thread
CameraCarl Veteran Member • Posts: 9,204
Re: Canon Ef 16-35 f4 Decentered or some other issue?
1

Exactly where were you focused for the landscape shot? How far away was your target? Were you on a tripod? The corners are probably unsharp because they are out of the depth of field. To test this, find another brick wall that is the same distance from your camera that your focusing point for the landscape shot was. Then repeat your brick wall test and check your results.  Another way to check for decentering is to take a photo, then rotate the camera 180 degrees (turn it upside down) and take the same photo. Then check the edges and corners. Franky I don't think there is anything wrong with the lens. It isn't going to be sharp edge to edge and corner to corner at f4 under the conditions you faced in that landscape. You need to stop down even a wide angle lens.

Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow