DxOMark.com has added a number of new cameras to its DxOMark Sensor database. Newly added are: the Canon PowerShot G11 (ranking 78th, with a score of 46.6); Canon S90 (79th, 46.5) (the close rankings confirming the belief that these two cameras use the same sensor); Canon EOS 7D (31st, 64.9); Sony A500 (34th,. 64.4) and Sony A550 (27th, 65.8); Pentax K-7 (52nd, 61); Nikon D300s (19th, 69.8), and Nikon D3000 (47th, 62.5).
Somewhat surprisingly, nothing has yet knocked the Nikon D90 (15th, 72.6) off its pedestal as the top-ranked APS-C sensor digital camera (all the cameras above it are either full-frame or medium format).
In other news, a few days ago DxO announced DxO Optics Pro v6.1 for Windows, which adds RAW support for the Canon 7D and G11 and the Nikon D3000. For this new release, several bugs were fixed and some improvements were made to the user interface based on customer feedback and suggestions. Fifty-six new DxO Optics Modules are now available to DxO Optics Pro users, covering the Canon 7D, XTi, XSi, and T1i; Nikon D3, D300, D300s, D40x, and D3000; Olympus E-30, E-420, E-510, and E-620; and Sony A300, A850, and A900.
DxO Optics Pro 6 for Mac is expected in "early 2010." In the meantime, there's an intermediate release, v5.3.6, which is compatible with Snow Leopard.
Here's the DxO Image Science website.
Featured Comment by Mark Probst: "I wouldn't take the DxOMark rankings too seriously. The DxOMark score is a composite of three sub-scores, only one of which (Low-Light ISO) is in any way indicative of performance at higher sensitivities.
"As an example, I mostly shoot black and white, rarely below ISO 400, but quite often up to 3200. Given that, I don't really care about the DxO dynamic range number, because it gives the dynamic range at whichever sensitivity it is maximized at, which is usually the lowest one. The Panasonic LX-3, for example, has a dynamic range number of 10.8, while the Canon 5D has 11.1. That would suggest that in terms of dynamic range their performance is comparable. The graphs however show that at ISO 400 the LX-3 is down to 8, while the 5D has barely fallen below 11, and the difference grows even more at higher ISOs.
"The third sub-score, Color Depth, is also mostly irrelevant to me, because I shoot black and white, but even if I shot color, it would only be meaningful if I shot at low sensitivities.
"So, don't look at the DxOMark score. If you must compare cameras via DxO, know what you need and look at the graphs! And don't forget to switch from 'Screen' to 'Print' mode!"
Mike replies: It's true—single-index scores, as I've ranted in the past, are of—ahem—limited usefulness. It's always better to dig deeper in the data and analyze according to your specific personal needs.