The Sigma 12mm f/1.4 DC C is a crop sensor lightweight prime lens for X-mount cameras with either APS-C sensors or a crop sensor mode. Key features includes:
Stepping Motor AF system
12mm ultrawide focal length; 19.2mm full frame equivalent
20% shorter than prior models
Fast maximum f/1.4 aperture
A Small Lens for Large Views. With a field of field suitable for vistas and small interiors alike, the Sigma 12mm f/1.4 DC C is a great specialty lens for shooters of crop sensor, Fuji X-mount cameras (or full frame cameras with a crop sensor mode). It is 20% shorter than Sigma’s others ultrawide primes and is a great choice for anyone looking for something easy to handle that can capture an open expanse, a cool liminal space, huge group portraits, or urban landscapes.
Suitable for Video. This lens is equipped with a Stepping Motor autofocus system and displays minimal focus breathing. The control ring offers quick settings adjustments and three double-sided aspherical elements limit distortion. Lastly, the f/1.4 max aperture is great for low-light situations. If you need to record a super wide scene on a crop sensor system while keeping everything extremely portable, this is the lens for you.