Excerpt: It's a slow beast, but if you have the patience to use it right, the IQ is astonishing. Not higher than 400 ISO, however. I use it in the studio (because it SYNCs) and it because practically replaces a Hasselblad w/80mm.
Excerpt: I got the Sigma "dp3m" after reading about its extremely good image quality. From the reviews I gathered that the camera was not very good otherwise, and this is in a sense true, but my experience has been all-round positive. Using the camera is oddly a little bit like shooting on film, you don't really know what you got until you develop the images in Sigma's own software (Lightroom and ACR do not support the Sigma file format).
Excerpt: A very good point and shoot with a nice mid-telephoto lens. The propriatary software to work with the RAW images is another matter. I can't get it to work on my MacBook Pro at all. All I want to do is convert the 46MP images from RAW to Tiff so I can manipulate them in Aperture or Photoshop...no luck. And neither Aperture nor Photoshop will "recognize" Sigma's RAW images. That said, even the fine JPEGs are very good. Too bad it's being discontinued.
Pros: Easy to Use, Great Resolution, Small / Compact, Very Quiet
Excerpt: I can only repeat what many others have said here and elsewhere: stunning image quality in a somewhat difficult to work with wrapper. What I would like to see added or improved: 1) a connector for a remote shutter release. 2) a better rear screen. 3) focus peaking for manual focus. 4) a bigger, longer-lasting battery. 5) in-camera production of DNG format raw files. I wish Sigma would focus on improving what this camera does well (amazing still images) and skip the rest.
Excerpt: I'm delighted with the DP3, and with the DP2 I bought as soon as I saw what results I was getting with the DP3. The best way to think of Sigma's DPx line is to imagine these as studio cameras, something for relatively slow, deliberate work, ideally on a tripod or with monolights. Of course they have no movements -- maybe the nearest equivalent would be working with a 500C Hasselblad in the good ol' days.
Cons: Lag / Shutter Delay, Limited Zoom, No Viewfinder, Poor Image Stabilization, Poor in Low Light, Short Battery Life
Excerpt: I researched pretty extensively and understood the quirky nature of this camera. I bought anyway due to low prices and image quality. I used it for a week and fear I was not man enough to stick it out. With patience you CAN get amazing I/Q but boy do you have to work for it. File write times are horrific, battery life is non-existent, dedicated RAW software not as bad as I was led to believe. End of the day, I did not feel it was worth the effort.
Excerpt: This much under appreciate camera is the perfect image maker for the patient photgrapher. It is not everypersons camera. A modest fixed lens telephoto with 1: 1 macro capabilities. A simple sensible shape (fits the hand even better with an L bracket)and a very simple intuitive menus system. The resolution is simply unbelievable aided by a great lens dedicated to, and designed for, this sensor.At this price point this is a no brainer.
Pros: Easy to Use, Great Resolution, Large Clear LCD, Small / Compact
Cons: No Viewfinder, Poor in Low Light, Short Battery Life
Excerpt: This camera has 5 star image quality, 4 star build quality (LCD middling to poor; no wired shutter release; otherwise excellent), 3 star operation (5 star controls; 1 star battery life, 50 to 80 shots per battery charge - but hey, at least they give you 2 batteries in the box and have an available AC adapter), and 3 star Sigma Photo Pro RAW conversion and processing software (SPP global adjustments are good, but there is no local adjustment capacity - you must export it...
Pros: Color Subtlety, Great Resolution, Small / Compact
Cons: No Viewfinder, Poor At High Iso, Quirky Pp Software, Short Battery Life
Excerpt: The DP3 produces amazing files. And I do mean amazing. That was the reason I bought it, as I'm sure the reason most are considering buying it. There are some big caveats to this machine however. It writes files to the SD card at a pace that seems to take forever. I use the DP3 to shoot landscapes mainly, which I am later stacking in post, so that requires 3 bracketed images.