The medium format camera offers a 37.5 million pixel low noise CCD sensor with microlenses and microlens shift.
Leica has upgraded the camera's sensor, along with the image processor, which it says makes it a better performer in low light situations, as well as producing better colour and white balance.
A new White Balance function has been included to enable you to manually set the white balance via a neutral area in the photo, such as a grey card.
The Leica S's sensitivity ranges from ISO 100, up to ISO 1600, while a new increased buffer memory enables continuous shooting of up to 32 images in raw format, all at a full 37.5 megapixel resolution.
The number of JPEG image that can be shot continuously is only limited by the size of the memory card.
An upgraded autofocus module is also included. This not only promises faster speeds, but also greater precision. Predictive autofocus is available, which compares past movements of the subject to compute the location of the subject at the time of exposure.
GPS on a Leica
Currently, the Leica S is the only Leica camera to include an integrated GPS module, which can add the geographic positioning of the exposure location to the EXIF data of the image, while also enabling precise synchronisation of the onboard clock.
The monitor on the back of the camera is a large, 3-inch 920k pixel device, made from tough, scratch-resistant glass. A viewfinder is also included, which covers a 98 per cent field of view.
New lenses, which include a 24mm f/3.5, 30-90mm f/3.5-5.6, 120mm f/5.6 tilt shift lens and a 180mm f/3.5 close-up lens, have also been announced.
Price and availability
This camera is not for those on a budget, whatsoever - the Leica S price will be £16,000 (around $26,000), with a release date of December 2012.
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Amy has been writing about cameras, photography and associated tech since 2009. Amy was once part of the photography testing team for Future Publishing working across TechRadar, Digital Camera, PhotoPlus, N Photo and Photography Week. For her photography, she has won awards and has been exhibited. She often partakes in unusual projects - including one intense year where she used a different camera every single day. Amy is currently the Features Editor at Amateur Photographer magazine, and in her increasingly little spare time works across a number of high-profile publications including Wired, Stuff, Digital Camera World, Expert Reviews, and just a little off-tangent, PetsRadar.