And this is something the Pentax DSLRs have always had. We praised the performance at ISO 1600 by the original *ist D. Although it's difficult to measure objectively, we'd say the K100D is even better than its predecessor.
Minor Evolutions Conclude
The K100D gives every appearance of a direct successor to the original *ist D. The *ist D used CF media, which was substituted by SD in the otherwise similar *ist DS. The K100D retains much of the look and feel of the *ist DS, adding the anti-shake to the genuinely useful features.
All of the Pentax DSLR models so far have been noted for their demure proportions. How big the camera body is in a DSLR is of greater or lesser importance, depending. If you use smallish lenses on the camera, such as the 18-55mm kit lens that comes with the Pentax, the smaller body is handy. But if you use large lenses, such as the ultrawides and superteles tend to be, the smallness of the body tends to fade behind the bigness of the optics.
The next Pentax model, the K10D, is a larger product, with additional seals against the elements. It's a 10MP model with anti-shake. We're guessing it's the strongest single competitor against the K100D. But after taking a lot of pictures with this final 6MP Pentax, we have a great deal of praise to offer it.
It's a serious picture-taker that's convenient, has a million fine-tuning features on its menu for those who can use 'em, and outperforms its closest competitors when the light gets dim. Those are potent considerations for a moderately priced camera, making the K100D a terrific deal in its class.