Conclusion: Both delightfully simple and deeply frustrating, the Sigma SD1 Merrill is the Jeckyll and Hyde of DSLRs. For photography in good light at low ISOs it's absolutely terrific. For everything else, it's just OK.
Conclusion: The Sigma SD1 Merrill is built around the uniquely designed image sensor, but a high price, sluggish performance and a time-intensive Raw workflow make it a difficult sell to all but the most devoted Foveon disciples.
Pros: Excellent build quality. High-quality viewfinder. Good control layout. Unique sensor design. Infrared shooting capability.
Cons: Expensive. Sluggish performance. Subpar LCD. Substandard JPG output. Difficult Raw workflow. No video support.
Excerpt: Fast-forward to the beginning of 2012 and what is essentially the very same camera, albeit rebranded as the SD1 Merrill, is available for a fraction of that price – though at £1850 it’s still the most expensive APS-C DSLR on the market by quite a margin.
Pros: Detail and sharpness (at ISO 100), removable IR filter; well matched to serious studio pros using ISO 100 & controlled light
Cons: Expensive; very poor high ISO quality; poor auto white balance; slow processing; no live view; unlikely to meet amateur users’ demands