Summary: The Sigma SD1 can give out-of-this-world results in terms of resolution & Clarity...but you have to accept some shortcomings. The operation and write times are from a bygone era...and users of modern super fast cameras will be frustrated. The high ISO performance is nothing to write home about with noise getting really ugly at and after ISO 1600.
Summary: The ultimate Foveon-based digital SLR, loaded with features and of an excellent build quality. I gave it only 4 stars as it doesn't have "live view" of the image you plan to capture using its LCD screen, only the viewfinder. Its an unexpected omission and one I hope they correct in any future model.
A truly unique, exciting, alternative to the "Canikon" fleet
Amazon Customer, Amazon
18 November 2012
Summary: Most people are not aware that when they buy a conventional (e.g. Canon or Nikon) digital camera, the sensor is what is called a 'Bayer array' and has a fundamental shortcoming: each sensor only recognizes one of the three primary colors (red, green, or blue). For example, in a 20 megapixel Bayer array, there are typically 10 million green sensors, 5 million red, and 5 million blue.
Excerpt: This is a first impressions report; got my SD1 for 2 weeks now, with firmware 1.03. I own Sigma SD14 and SD15 cameras, so this SD1 is my third Sigma camera. I use Sigma cameras since 2008 and can say than the SD1 is the best one I have used so far. I bought the SD15 last year, believing that the SD1 was just a SD15 with a bigger sensor, and I wasn't ready to spend the extra money for a camera I thought was in no way better.
Pros: 2 Dials For A-s Settings, Easy To Use, Good Image Quality
Excerpt: So, I have this camera, and a Nikon D800. The short review is that I love this camera for color rendition on still subjects, such as flowers or scenics... even if getting there requires jumping through the hoops of a slightly quirky camera, and Sigma's software. Outside of that niche, the D800 (or most of the other Nikon or Canon offerings) are better general purpose cameras. The longer review, there are things I like about this camera.
Pros: Good Image Quality, Quiet, Simple Feature Set
Excerpt: I really want to love this camera for its superb sharpness and 3d image quality. Its definitely got the Sigma look to it. Much improved over the SD15 except in one area; Color. The colors don't pop like they did on the older models, including the DP series. Maybe its all those pixels. Colors can always be fixed but that's not what I bought this camera for.
Pros: Good Image Quality
Cons: Noisy At High ISO, Poor In Low Light, Short Battery Life
Excerpt: It is the best classic DSRL camera on the market. The most important is an excellent image quality this camera provide. It has user-friendly and classic interface and bright screen. Moreover, it provides the possibility of infrared photography. LCD, however, could be bigger and with better resolution. Furthermore, the protective anti-dust screen is very fragile and easy to break.
Pros: Easy To Use, Fast Shutter Speed, Good Image Quality
Excerpt: I own both the Sigma SD14 & Sigma SD15 and have been very happy with the way they handle color.I do fine art landscape and nature photography so I looked forward to having the higher resolution of the Sigma SD1 Merrill. I just tested the camera on a trip to Costa Rica. The resolution is indeed superb with at least the performance of a 30 megapixel Bayer pattern camera. The color is a bit muted and biased towards redering images too warm.
Pros: Very sharp images
Cons: Must correct warm bias, Noisy At High ISO, Poor In Low Light
Summary: Ich widme mich seit 37 Jahren der Fotografie, reines Hobby. In der Zeit habe ich viele Kameras mir gekauft. Der große letzte Meilenstein war zweifellos der Umstieg auf digital 1998. In dem Bereich angefangen mit 2 Megapixel ging es immer weiter über 6 MP, 12 MP und zuletzt 16 MP. An der Stelle habe ich auch aufgehört, mir weitere DSLRs zu kaufen.