First of all, there really isn't a "shooting techniques" category, so I guess I'll post this question here. I'm in Vegas and have been trying to shoot the skyline including the strip using my 70-200 at all focal lengths. Shooting between 1/3 and 1 second and I can't seem to get them sharp enough. I misplaced my release, so I'm using self timer. But I'm wondering if mirror slap is causing problems? I've never used MLU, so I don't know how much it really will help. I wish I had thought of this while out in the field, I guess I'll try again tomorrow. This one is at 1/3 second. It was also very windy. To minimize tripod issues, I was shooting with the pod all the way collapsed.