While we're still waiting for a full production sample of Sigma's new flagship DSLR, the SD1, we did get to check out a preproduction unit recently. As with all preproduction samples, you never quite know what is final and what isn't. We're told that the design of the body is final, so buttons and the overall shape of the camera should remain the same. But, it's impossible to know anything about what might change inside the camera and it should be assumed that the firmware will go through at least one more iteration before everything is finalized.
