20mm f/1.8 ED AS UMC Canon M

The Samyang 20mm f/1.8 ED AS UMC is a high speed, manually focused wide-angle lens made to support full frame cameras from Canon, Nikon, Pentax and Sony. It is also available in mounts for various APS-C and Micro Four Thirds models.

The large aperture, f/1.8, means the lens can be used to photograph in poor lighting conditions or to make a main subject stand out against a blurry background. The 20 cm minimum focusing also adds versatility to the lens.

The optical construction consists of 13 elements in 12 groups. Two aspherical elements counteracts spherical aberraion and assure high sharpness across the image at all apertures. Three elements made from ED glass (Extra-low Dispersion) minimize the risk of chromatic aberrations and help the lens produce pleasing colors.

 

Features

• 20mm wide-angle lens with high speed aperture (f/1.8)
• Full frame compatible
• Manual focus with smooth focus ring
• 2 aspherical and 3 ED elements for maximum image quality
• Available in many mounts

 

Specifications

Focal Length: 20 mm
Maximum Aperture: 1.8
Image Circle: 24 × 36 mm (full-frame). Will also fit APS-C / M4/3
Lens Mount: Canon EF, Canon EF-M, Nikon F, Fujifilm X, Olympus / Panasonic Micro 4/3 (MFT), Pentax K, Sony A, Sony E, Samsung NX
Focusing: Manual
Image Stabilizer: No
**Optical Construction: **13 elements / 12 groups
Minimum Aperture: 22
Minimum Focus: 20 cm
Maximum Magnification: Unknown
Diaphragm Blades: 7
Filter Size: 77 mm
Length: 88 -- 115 mm depending on mount. Canon EF: 88 mm. Nikon: 86 mm. Sony E: 114 mm. Fujifilm X: 115 mm 
Diameter: 83 mm
Weight: 488 -- 565 grams depending on mount. Canon EF: 497 g. Nikon: 488 g. Sony E: 525 g. Fujifilm X: 565 g
**Included Accessories: **Lens hood, lens caps
Other: --