Professional ultra-fast aperture wide-angle lens
24 mm focal length (DX equivalent 36 mm).
Bright viewfinder image
9-blade rounded aperture produces soft and pleasing blur characteristics.
Nano Crystal coat reduces ghost and flare.
ED (Extra low Dispersion) glass and aspherical lens elements ensure high resolution and superior contrast.
SWM (Silent Wave Motor) for fast, quiet autofocus.
Durable magnesium body with rubber mount seal.