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<blockquote data-quote="bartjeej" data-source="post: 67782" data-attributes="member: 488">The backlit sensor in the Sony is supposed to be better at high ISO's, but I agree with you that you should be able to expect (much) better from the LX5.What I find odd is that, with an almost 2 stop faster lens and identical shutter speed, you got only 1 stop faster ISO value for the LX5... that would suggest that either the Panasonic is overreporting its ISO values, or the Sony is understating it. Which makes it even weirder that the Panasonic's results are that much worse. Based on my EX1, I'd espect an ISO1600 shot to look more or less like the 3200 ISO shot by the Sony (these are 100% crops, I assume?).One other thing I see is that with the TX5, all the bottles are in focus whereas with the LX5 the bottles drop out of focus very quickly. Of course part of this could be caused by the shallower DOF that comes with the lens at f2 (and the larger sensor), but could it also be that the focus was not at the distance to subject? None of this would explain the noise, ofcourse, but it might go some way to explain the difference in sharpness.</blockquote>

[QUOTE="bartjeej, post: 67782, member: 488"] The backlit sensor in the Sony is supposed to be better at high ISO's, but I agree with you that you should be able to expect (much) better from the LX5. What I find odd is that, with an almost 2 stop faster lens and identical shutter speed, you got only 1 stop faster ISO value for the LX5... that would suggest that either the Panasonic is overreporting its ISO values, or the Sony is understating it. Which makes it even weirder that the Panasonic's results are that much worse. Based on my EX1, I'd espect an ISO1600 shot to look more or less like the 3200 ISO shot by the Sony (these are 100% crops, I assume?). One other thing I see is that with the TX5, all the bottles are in focus whereas with the LX5 the bottles drop out of focus very quickly. Of course part of this could be caused by the shallower DOF that comes with the lens at f2 (and the larger sensor), but could it also be that the focus was not at the distance to subject? None of this would explain the noise, ofcourse, but it might go some way to explain the difference in sharpness. [/QUOTE]

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