1、F4 Large Aperture: Good blur effect, bring better artistic beauty, can also shoot large movies in low light environment, and have a strong sense of operation during shooting with graded aperture. 2、17mm Focal Length: The angle of view is 81 degrees at 17mm focal length, avoiding the exaggerated and difficult to control characteristics of ultra wide angle, suitable for shooting sceneries, humanities, portraits, etc. 3、F4 Maximum Aperture: F4 large aperture fixed focus wide angle lens, which can provide a larger amount of light, ensure that large scale films can be produced in low light environments, and give a larger space for creation. 4、Nearest Focus and Frame: The closest focusing distance is 0.2m, which can better present the details of things. Equivalent to full frame 25mm, which is a common focal length for humanities documentary and other subjects. 5、Applicable Models: Camera lens is compatible with for Nikon ZFC, Z6, Z7, Z50, Z5, Z6II, Z7II, etc. Small and light, all metal body, weighs only 403g/12oz, easy to carry, will not increase burden, can bring you more convenience. 1 x Lens1 x Front Lens Cover (Installed) 1 x Lens Rear Cover (Installed) 1 x Manual  Item Type: Camera LensProduct Material: Alloy + Optical GlassColor: As Pictures ShownNet Weight: Approx. 403g/ 14.2ozGross Weight: Approx. 429g/ 15.1ozLens Type: Manual LensFocal Length: Approx. 17mm/ 0.67inMaximum Aperture: F 1.4Minimum Aperture: F16Frame: APS-CFilter Size: Approx. 40.5mm/ 1.59inNearest Focus: Approx. 0.2m/ 7.9inViewing Angle: 81°Aperture Blade: 10 PiecesOptical Structure: 9 Elements in 8 GroupsLens Anti Shake Type: Without Anti ShakeFocus Method: Manual FocusShooting Scene: Scenery, HumanitiesBayonet: Z MountApplicable Models: for Nikon ZFC, Z6, Z7, Z50, Z5, Z6II, Z7II, etc.