what can I say perfect?

Sigma has long been the hate product of the camera industry, more than any other manufacturer gets such a hard brand bashing.
It is a Nieschenprodukt which is for special people and not a mass product that you should carry always in mind.
All always expect faster cameras are high ISO to about 100000 Iso Full HD is its standard today or needs.
To my own cameras include the Nikon D3s and the Pentax K5 and since new SD1.
The need which the camera can, it can be better than the other two and in Lowisobereich: photograph!
The images have an effect, which the Foveon for Bayer pattern can appear vividly. The wealth of detail is much more pronounced, it is not a camera for beginners, or ones that expect that you can shoot with their long runs.
It is slow but very accurate, suitable for snapshots, video-existent. For me the perfect Cam to ISO 800th
I do not need videos, but I use a compact, also me the data volumes are absolutely great.
Many do not deal with the camera, but see only laaaaangsam, then it must be bad, ISO 3200 adjusted why it rushes back because so much the same.
I've been using the SD1 found a perfect working tool, which is of course room for improvement, but for landscape and portrait for me at the moment the finest equipment