1、HD LENS: Manual focus prime lens with alloy housing and premium lens, good performance. 50mm focal length, minimum object distance 70cm. 2、LARGE APERTURE: Maximum aperture f helps you achieve background bokeh effect and increase the brightness of images in dark environments. 3、WIDE APPLICATION: 50mm manual prime lens is suitable for all kinds of photography, including landscape, portrait, still life, travel, wedding and macro photography. 4、ADVANCED TECHNOLOGY: F4 manual prime lens has advanced optics that ensure all around clarity and effective light guidance. 5、MANUAL ADJUSTMENT: Camera fixed focus lens supports manual aperture adjustment, you can manually adjust the aperture according to the available aperture. 1 x Manual Focus Prime Lens Item Type: Manual Focus Prime LensMaterial: Metal, GlassFocal Length: 50mm/ 2.0inAperture: F 1.4 CAperture and Focus Operation: ManualAngle of View: 7° 50''Minimum Object Distance (MOD): 70cm/ 2.3ft