Sigma’s BF is a minimalist full-frame camera with no memory card slot
The Sigma BF features simplified controls on the back, a redesigned user interface, and 230GB of built-in storage.
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With Its BF Camera, Does Sigma Take the 'Radically Simple' Concept Too Far?
Sigma's CEO says BF unofficially stands for 'beautiful foolishness,' a nod to Japanese tea ceremonies. Indeed, the camera leaves a lot of stuff out, including features enthusiasts may miss.