Canon 17-40mm Lens Photos Looks Flushed

[jahlavay]

I bought a used Canon EOS-1D Mark IV along with a Canon 17-40mm wide-angle zoom. When I use the lens, the picture is extremely flushed, too much light. But when I use the standard 50mm lens that also came with the camera the photos look good.

Is there a setting for the 17-40mm that I need to make?

[johnrmoyer]

Just speculating. If the 17-40 works in Tv but not in Av, then maybe the camera is not able to change the aperture on the lens. This might be an easier test.

[ebiggs1]

As you can clearly see something is amiss here.

It doesn't seem like you changed lenses. It shows you used the same lens, ef 17-40mm f4 for both photos. It also shows an ISO change.  I also suspect you had auto ISO turned on. When comparing lenses you must have every setting EXACTLY the same or it is meaningless.  The parking lot has the exit data stripped. We cannot help if you do that. 

I would guess you did not do a complete reset of the 1D4.