Excerpt: Camera Body and Screen First thing that strikes you is this is a small dense camera. It is beautifully built and feels like a step up from cameras of a similar size such as the Panasonic GF1. It's all metal besides the controls and lens casing, and feels solid and cool to the touch. The screen is beautiful and arranged with vestigal 'tabs' along the top that make it very easy to hunt through the clear and logical menus.
Summary: You will love this camera or hate it. I love it. I've realized, after reading reviews of each of the Sigma DP cameras and owning them all (DP1, DP2, DP1m, DP3m), that the negative reviews are mostly written by people who don't actually own the cameras. The earlier reviewers pretty much covered the pros and cons (in well written reviews), no need to cover it all again.
Summary: Let me first clarify some concept regarding this camera (Sigma DP2 Quattro)...Since most of the reviews out there claims that this camera is awful for shooting photos in low light and at high ISOs (and maybe they are right). But I believe this camera is intended for "Product photography" or something alike, like Landscape photos. By the way "Professional photos" in the end..
Summary: This camera is a classic! The results from this camera remind me of a classic medium format. Fine AF. Faster processing, Unbelievable IQ. If you shoot Leica and Sony A7R, this camera may well have you leaving them at home. The Quattro does like good light but then that is hardly a fault in such a classic.
Summary: Superb camera! Very high quality JPEG images right out of the camera. When it comes to image quality it can easily compete with full frame Nikons and Canons. It's light, fits in your hand and has excellent easy to use controls for set-up and shooting. In my opinion it is the best fixed lens camera on the market today.
Excerpt: I bought this camera because i was looking for an excellent B&W camera that didnt break the bank. I have used the camera for limited landscape areas, portraits and art photos. It excels at B&W. Perhaps its not a Monochrome Leica but it sure beats my higher end DSLRs. Color rendition is excellent. The adjustments are really well thought out and handy for use in the fly.
Pros: Easy To Adjust On The Fly, Excellent color rendition, Great black and white, Great Bw, Light Weight, Sharp
Cons: Macro Is Not Quite Strong, Macro Needs To Be Stronge, Raw Software
Summary: After using the Sigma DP2 Merrill (and the DP1 and DP3 Merrill) for almost 2 years, the DP2 Quattro is a welcome upgrade in usability and image quality. Here's what I like about the DP2 Quattro compared to the DP2 Merrill: 1. Improved battery life, 2-3 times as many shots on one charge. I rarely need to change the battery more than once a day. 2. Much faster write times. Under 5 seconds shooting RAW+JPEG. 3. Higher resolution display (no more jello shake). 4.
Summary: definitely a photographer's camera. no frills. slow. take your time to compose. best image. excellent solid body. beautiful lens. so you cannot use for instant shooting. have to plan ahead and stabilise the body. fine with me, i am slow.