This lens is distinguished by uniform sharpness and minimal distortion across the entire image area even at full aperture. This version contains and aspheric element to minimize chromatic aberration. The lens makes highly dramatic effects possible, like monumental foregrounds, strongly receding backgrounds, and a wide horizon. With this lens, focusing and metering are performed by looking through the camera’s viewfinder, while the actual framing is checked with an Optional accessory viewfinder that mounts in the camera’s hot-shoe.
This lens has been updated with the “6-bit” coding, which allows the digital M camera to read this information optically and to identify which lens is being used. The camera can then (optionally) apply a “final stage” software based vignetting correction (for RAW images the lens used is simply recorded, no change is made).
This lens does not come with a separate viewfinder.