Hi All, I have a Nikon D90 which I've had for 6 years now. It's been around the world several times and dropped, knocked and bumped about. However, it's performance has been flawless until about a month ago when I noticed that the edge of all images was blurred. It looks as iff I've applied a DOF filter to the image to sharpen the middle and blur the edges. I've tried switching lenses, cleaning the sensor (through the cameras menu) and no matter what I do I get the same result on all settings, focal lengths and lenses. Does anyone know what is likely to be the cause? Could it be a sensor problem? I'm trying to determine if it's worth getting fixed or maybe it's time to upgrade? Below is a photo I took last night which shows the blur I'm talking about. Thanks for your help!