Overview
New-generation. fast prime lens with superior rendering for exquisite image expression that redefines perceptions of what a 50mm f/1.8 lens can do
Key Features
Outstanding rendering realized with the new Z mount optical system that overturns perceptions about f/1.8 lenses
Optical performance remarkably superior to that of conventional lenses is achieved by the lens arrangement made possible by the new Z lens mount. The lens construction of 12 elements in 9 groups including ED glasses and aspherical lenses provides evidence of a superb optical design that delivers uncompromising image quality. Higher optical performance that differs from conventional f/1.8 lenses is attained through the following four factors:
1) resolving power compatible with high-megapixel digital cameras that enables reproduction of even minute texture.
2) soft and beautiful bokeh characteristics even at short distances.
3) intensively reduced axial chromatic aberration. and
4) superb point-image reproduction.
The full potential of this lens can be realized even at the maximum aperture. Superb resolving power. specifically. is retained at a higher level. providing sharp reproduction of details across the entire frame at any focus distance. Also. Nano Crystal Coat that effectively reduces ghost and flare is employed to ensure clear. sharp rendering even under backlit conditions. Outstanding rendering performance that changes perceptions about f/1.8 lenses enables the capture of images just the way photographers imagine they will be. While enhancing optical performance. compact design is also achieved for superb portability.
Quiet and highly accurate AF
With the higher standards of lens design principles. and more detailed lens information via high-speed. large-capacity communication between the camera and lens. outstandingly accurate AF control is provided for both still and movie shooting. A new. powerful stepping motor (STM) that enables quiet and accurate AF control is adopted as an AF actuator. The stepping motor realizes quiet AF shooting while ensuring high optical performance. which is usually difficult to attain.
Highly convenient features and superior operability
A control ring is newly adopted to which functions such as focus (M/A). aperture and exposure compensation can be assigned. The ring enables comfortable shooting with its superior operational feel. It also works as the focus ring when manual focus mode is selected.
Great movie recording performance realized by intensive consideration even for details
Focus breathing (shifting of the angle of view when adjusting focus) is effectively compensated and various sounds (AF drive. diaphragm drive. control ring operation) are minimized. Also. smooth diaphragm control enables the recording of movies with natural transition of image brightness. In addition. smooth image expression is achieved with superb operational feel of the control ring.
Other features and functions
Lens body is designed carefully considering dust- and drip-resistant performance for enhanced reliability.
Electromagnetic diaphragm mechanism that accurately controls the aperture for stable aperture control even during high speed continuous shooting.