Camera now working correctly, I was gonna remove the lens and as I started to turn it the shutter tripped, tightened lens again,no work, started to remove and shutter tripped again, switched lens and camera worked fine, went back to original lens and camera worked fine, I'm baffled. Could I have gotten the aperture pin misaligned when I put on this lens, come to think about it, I put this lens on after I removed the batteries.