I'm a Professional Who chooses to use 2 of the Canon Mark lDs lll for work.
15 November 2014
Summary: This is a professional camera and a mom and dad wanting to take quick photos may find it over their heads. This is a remarkable piece of equipment. If a beginner can find the P setting they may be ok. I love this camera and have 2 I use during a photo shoot with different lenses. If you buy a used mark 1ds lll you need to have lower the 50,000 clicks so you can get you 300,000 before you need to pass it on.
Excerpt: if you are looking to film anying upscale like a small movie, youtube skit ect this is the camera for you, however to obtain any good footage you will need a good lens upward of $1000 otherwise you are not using the camera to it's full potential. if you are looking for a camera to get nice pictures with i would reccoment not getting this camera because it dose many of the same things that the mark II and I can do with only very minor tweaks that are not worth the price.
Excellent choice for studio or architectural photography.
17 June 2014
Summary: In mid-2014, this camera still stands out as a producer of high quality studio and landscape images. I use this camera for landscape and architectural photography and primarily HDR rendering. Compared to the older model I had been using, this camera produces much improved images. The battery life is awesome! I am using the fastest compact flash on the market and it works flawlessly with this camera.
Summary: I have been shopping for a Mark 3 and found this one on ebay. The pricing was more than fair and the camera looked and operated like brand new. I shoot commercial, school, and action and this camera covers it all. It is quiet, the full size sensor delivers crisp hi-res photos, and the features are easy to understand and use. I highly recommend this camera to anyone, pro or just getting started. I love the camera and Canon for sure.
Summary: Having Canon cameras for many years plus an assortment of lens and flash it was only natural and financially wise to continue with the brand loyalty. I found many of the features of EOS 1 Ds Mark lll similar to my EOS 3 film camera. This is my first digital camera and I would have to say of all the cameras I have owned that I have been the least enthusiastic about this camera. Coming into the digital age almost 30 yrs late no doubt explains my lack of enthusiasm.
Summary: I bought this camera body to compliment the 1d Mk III I had purchased earlier through eBay. Both work flawlessly and allow nearly anyone to capture great images, in nearly any situation. While a handful, it's weight seems to make balance better when coupled with some of the heftier L series zoom lenses. The camera is built tough, and if you shoot RAW to take advantage of the amazing 21.1 MP full frame sensor you capture amazing images.
Summary: Fantastic camera at a great price. The used camera arrived in near new condition. The camera is pro grade - with dual card slots, dual controls, full size sensor and 21 MP. These features allow me to take fantastic portraits of friends and family and spectacular panoramas of the mountain ridge at sunset. Canon has replaced this model but at a price atleast twice the price of this used camera.
Excerpt: Having owned all the 1Ds and D bodies (still own the 1Ds2 and 3), I was disappointed that it was not significantly better than the Mk2. As far as my 2 cameras are concerned, the Mk2 has much, much less noise in the shadow areas. I only shoot at 100 ISO. If the Mk2 had microfocus adjustment I would (maybe) sell the Mk3.
Summary: Canon 1 Ds III is definitely worth the money. I have other EOS series like 5Dii, 1D4, and also a crop 7D. The 1Dsiii is definitely a all PRO camera. Snap on any L Series prime lens on this body, you will take amazing photos.