Interior panorama

The Paris opera house is a stunning work in architecture and artistry. It really takes your breath away. I was looking forward to trying out my interior pano technique on one of the famous rooms, and my photo tour group was first in line at the ticket office so we could start shooting with no people messing up our shots. This is a 10-frame panorama sequence where I began by shooting horizontally toward one end of the cavernous room, and then I raised my camera to continue taking individual frames that were overlapped about 50%. When I got to the middle of the ceiling overhead and I couldn't bend backwards anymore, I turned 180 degrees and continued taking shots until I reached the floor. Then I used the 'photomerge' command in Photoshop to stitch the frames together. This is not an HDR image. I used a Sigma 14mm f/1.8 wide angle lens, and my settings were 1/50, f/5, and 2000 ISO. I used tungsten white balance, and everything was handheld.