In article , George
Preddy wrote:

Sandy, in terms of quality Sigma is dominant right now, no other pro
DSLR is even close. Certainly not the ancient 1Ds, with its barebones
electronic side, small sensor pitch, and blurry old 90's vintage 0.35
micron CMOS. Certainly not the moire-machine 14n. Not only is Sigma
dominant, there's literally no competition in the pro class.

Sigma is outclassing medium format film, no one else is halfway to
35mm in full color performance.

The only thing dominant about Sigma is their ability to produce
mediocre equipment which create mediocre images.