Hey everyone... I own a sony alpha and i've always felt like there might be somethign wrong with it... I've seen concert phtos taken by a fellow with a canon 20d (i think) and he said he was shooting at around iso800-1600 at f4 with a shutter speed of about 1/160". I was shooting at f5.6 and at mostly 1600 iso, with a shutter speed closer to 1/30" our pictures came out very similarily exposed but his needed a much shorter shutter speed. and i always sort of feel like not enough light is getting to the sensor or something.... here's an example. the first photo illustrates closely what the actual light in the room looks like. the second photo was taken in the same conditions at ISO 100, and f1.7, shutter speed 1/160" should this image be brighter than it is? I just want to know if its worth sending into sony or not. thanks!