I recently upgraded from a 4s to the 6s. I've noticed that the lower the ambient light, the worse my panoramic shots turn out. I don't know that much about photography, but the image properties of my panoramas from the 4s seem to indicate variable ISO. But with the 6s, the all say ISO-800. In dark settings, the 6s's panoramas come out way worse. See the below examples. The first is in a bright light setting, and the quality is equal. The next one is in a bit dimmer room, and by the time we get to the last one, the 6s' quality goes below acceptable (ISO-1600 on the 4s vs ISO-800 on the 6s). Is there anything I can do about this? I noticed that after I take the picture, the photo editor allows me to tweak the brightness, contrast, etc, but I can't tell how effective it is given the phone's small screen size.