It's the Panasonic Lumix S Pro 50mm F1.4 lens, a high-quality, professional-grade lens designed for superior performance and durability. This lens, specifically engineered for L Mount camera bodies, boasts a large aperture and fixed focal length, delivering impressive image quality and a rugged, lightweight design. The 50mm focal length coupled with the F1.4 high speed ensures versatile use, providing stunningly high-resolution images with exceptional performance from the center to the corners. This lens is ideal for capturing the world in its full glory, whether you're shooting portraits, street scenes, or landscapes. The Lumix S Pro 50mm lens offers smooth defocus gradation, transitioning seamlessly from the focus peak to the neighboring areas of the image. It's designed to render point light sources in the background as beautiful, impressive bokeh, adding an artistic touch to your photography.