Black Vertical Bar In Photo, Please Help.

[PhotoBoyBC]

I appreciate it mbrager. It all makes sense. I got a bit worried by the Nikon reply.
John

[ericmark]

Instead of advice I am going to say thanks. It is easy to forget a focal plane shutter can cause that effect. Even back to days of film I had the odd picture with odd effect which I could not explain.

[ericmark]

Just had a similar effect. In my case a hair on the sensor. Problem is it moves each time camera is switched on so hard to work out if removed or not.