• 9 BLADES IDEAL AMETER: The fine-tuned function of the optical design of the ZEISS SLR lens ensures optical bokeh and has a particularly harmonious effect in blurred areas of the image. The 9 diaphragm blades on the ZEISS SLR lens and consequently a virtually circular aperture is important for preferably performing forward and background highlights • SUPERIOR IMAGE QUALITY: ZEISS lenses offer the highest standard in performance, reliability and of course image quality. Very simple and great on any surface. You can count on advanced flare control for crisp, crisp images and near zero geometric distortion. Ensures precise accuracy when recreating shapes - especially useful when shooting products and architecture • Precise Manual Focus:Manually focusing the lens means controlling the image results from your fingertips. Superior ergonomic design makes every difference. ZEISS lenses are highly visible at a large rotation angle so you can focus accurately. Changes will be displayed in the viewfinder immediately. High quality focusing mechanism glides smoothly without play and supports intuitive interaction with focusers. Accurate sculpture in metric and feet, depth of focus can help manual focus • Fine Straight Light Reduction: Rich and vibrant colors are essential for lasting impressions. However, stray light of the lens can cause the brightness of the image, especially in shadow areas. We combine a variety of technologies to reduce unwanted stray light, such as the famous ZEISS T* anti-reflection coating and special jet black paint that has been hand applied to the lens element edge to prevent reflections from the beginning