I was indoors and only briefly opened the door to get the photo. I do have filters on all my lenses to protect them. This was barely the leading edge of the haboob and within about 2 minutes after this photo I could barely see the HUMVEE and I moved ...
Still Have it but I have upgraded to a EOS 6D with all "new to me" lenses. Canon 300mm F/4 L IS, Canon 24-105 F/4 L IS, Canon 100mm F/2.8 Macro, Canon 50mm F/1.8, Sigma 15mm F/2.8 Fisheye