Samyang AF 14mm f/2.8 EF is an ultra-wide angle lens with autofocus, specially designed for Canon's DSLR cameras (EF mount). The lens is full-frame compatible but can also be used on a camera with APS-C sensor.

With its extreme angle of view, large aperture and weatherproof construction, the lens is perfect for sports, landscape and astrophotography while its lightweight and compact format also makes it easy to carry on a journey.
 

Autofocus and electronic aperture
The built-in motor provides fast, quiet and accurate focusing while an electrically controlled aperture makes the lens compatible with all exposure and light metering modes the camera can offer. If you prefer to focus manually, the lens has an easily accessible AF / MF switch and a wide, comfortable to use focus ring. The short minimum focus, only 20 cm, makes it possible to capture close-ups of details and also show a lot of the surrounding environment in the pictures.

Optics for high demanding photographers
The advanced optical construction consists of 15 elements arranged in 10 groups. Among these are 2 aspherical elements that ensure low distortion as well as maximum contrast and sharpness across the entire image plane even at large apertures. Coma and color bleeding are prevented by the use of 4 elements of HR glass (High Refractive) and 1 element of ED glass (Extra Low Dispersion).

Furthermore, Samyang's advanced Ultra Multilayer Coating (UMC) is used to prevent the occurrence of reflections, stray light and ghosting. Point light sources are reproduced as beautiful sun stars thanks to the 7 blade aperture. 

The sensitive inside is also protected from moisture and dust by means of rubber gaskets.

Summary of important features

• 14mm ultra wide angle lens with Canon mount
• Quick and quiet autofocus plus auto exposure
• Advanced optics with aspherical elements, HR and ED glass
• Compact and lightweight – only 485 grams
• Weather sealed construction
• Fixed lens hood
• Short minimum focus, 20 cm

Specifications

Focal Length: 14mm
Maximum Aperture: 2.8
Image Circle: 24 × 36 mm (full-frame). Will also fit APS-C
Lens Mount: Canon EF
Focusing: Autofocus
Image Stabilizer: No
Optical Construction: 15 elements / 10 groups
Minimum Aperture: 22
Minimum Focus: 20 cm
Maximum Magnification: 0.15x (1:6.7)
Diaphragm Blades: 7
Filter Size: No filter thread
Length: 96 mm
Diameter: 91 mm
Weight: 485 grams
Included Accessories: Front and rear lens caps
Others: Weather seals. Fixed lens hood