Well, as somebody in the comments section of that page mentioned, if its underexposing, a long exposure (like the 30 seconds in the night shot of San Francisco on the link) will exacerbate the issue.I oftentimes shoot with my 60D overexposing by 0.3 stops (sometimes 0.6), and it has never annoyed me. I just set it to +0.3 and leave it like that.
The test shots on those links were shot at 1/4 sec.
I am pretty concerned about this issue, I'm really hoping it's just the factory settings, like Auto Lighting Optimizer being turned on.
My T2i overexposes constantly, especially with my 28-135mm. I'd really like to be able to use aperture priority mode without having to mess with the EV settings constantly.
Are you looking for a brighter look, or does +0.3 look more correct? I'm constantly moving between -.6 and -1.3 just so images aren't totally washed out and clipping.
Sorry if this is derailing the thread a bit. It seems like this could have a major impact on night sky/star field shooting, which I am looking forward to doing when I go full frame.
I see no problem at all in derailing...
I've found myself quite often disagreeing with the camera's meter and increasing exposure in LR, and (although those with better knowledge on the subject may disagree) digital sensors deal better with overexposure than the opposite. I always shoot RAW, so I can bring exposure down if necessary with no loss of detail; on the other hand, I would probably introduce noise if I were to bring exposure back up.
It might sound like it's all good, but I've screwed up a few (too many) shots already by doing like that. When shooting something important, I always overshoot and vary exposure.
I think it's about knowing your camera, too, and having it do what you want and adapt it to your own photographic tastes/needs.
Neuro and others here sure know it in details; I just read it in one of the first books I bought (read quote below) and believed...
"The camera’s sensor does not give equal weight to all tones. In fact, your digital sensor is heavily weighted to the brightest areas in your photo. (...) Taken another way, the camera has a ﬁxed number of numeric values for describing the brightness of a pixel. Fifty percent of those numeric values are devoted to the brightest f-stop in your photo. Each successively darker f-stop receives one-half the number of the f-stop ahead of it, until the shadows receive only a small sliver of the total possible values. This is important information, because all detail in your photos is a result of subtle differences in tone and color between adjacent pixels. In the shadows, where fewer values are available to describe these differences, it becomes more difficult to retain details. Underexposing photos drives more of the information contained within a photo deeper into the shadows, causing a loss of detail and an increase in noise (unwanted color impurities) in the photo."
(Taken from Perfect Digital Photography, 2nd edition
, hopefully not infringing any copyrights.)
Hope it helps.