Ok, first let me lay out the troubleshooting we've done. The below image was shot with an 18-55 Kit lens on a Nikon D60. Some back story: My friend and I were shooting at work one night at a skyscraper nearby. We started noticed that his camera was getting some refraction from some lights in our courtyard. This was on a D60 with 18-55 Kit lens. We swapped lenses (On my D40) and he was unable to reproduce this with my lens. (We shot in as exactly the same position as we could get, and had NO trouble reproducing this with his setup every time) I was unable to reproduce this with his lens on my camera. But, once he put HIS lens back on HIS camera, he got the reflection again. Fast Forward to the image below. This was taken a week or two ago, and he's getting the same reflection. I took similar shots on my D40 with his lens and was unable to reproduce it. He can reproduce it indefinitely with his lens and his camera, but not with any other combination. He's tried with a UV and polarizer filter (For troubleshooting) and gets the same result. So, what we want to know is why is this happening, and what can we do to correct it? (Sorry for the long post, but I wanted everyone to understand EXACTLY what we've done to troubleshoot this) Is this a camera issue? (That's what I'm leaning towards, but it doesn't reproduce with my lens, and I can't reproduce it with his lens. It's ONLY his camera/lens combo) And it's not him shooting either, because I can reproduce this with HIS setup as well. Please help!