The Sigma dp1 Quattro is a strange albeit nicely redesigned fixed-lens compact. It looks like a camera that we should expect to see in the 21st century. If streetscapes and travel photography are your thing, this is a good camera to have in your bag (because it isn't one you can carry in a pocket).

Sigma claims that this lens is a "pro level performer for shooting everything including portrait photography, landscape photography, studio photography and street photography", so I put it through its paces to see if that was true.

If you'd like the short version right here, the lens mostly holds up to those claims.

This review is more about how the lens performs in the field, and I haven't comparedit to any other lenses even though I have a couple of Nikkor 50mm lenses.
I didn't want the review to be about this-50mm vs. that-50mm. There are several other blogs and photography or tech-related sites that have made those comparisons. Skip to the Image quality section for links.

I was very pleased to finally encounter Apis dorsata, or the Rock Bee, on the park grounds. They're all over this park, making me regret that I haven't visited earlier.
(In my defense, the monsoon season over the last couple of months has really prevented me from going anywhere in search of bees)

In an interesting new approach to high dynamic range photography, a group of researchers at MIT Media Lab have developed a method of increasing a camera's dynamic range to infinity, potentially ending the problem of overexposure.